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You searched for: Author marwa Remove constraint Author: marwa Publication year rev 7982-2018 Remove constraint Publication year rev: 7982-2018
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1. A Life Cycle Sustainability Assessment-Based Decision-Analysis Framework

Author:
Marwa Hannouf,   et al.   ; Getachew Assefa;     Show all 2 Author
Source:
Sustainability 2018 v.10 no.11 pp. -
ISSN:
2071-1050
Subject:
case studies; decision making; decision support systems; life cycle sustainability assessment
Abstract:
... One of the main challenges in using life cycle sustainability assessment (LCSA) is the difficulty of integrating the interrelationships between the three dimensions (environmental, economic and social dimensions) of LCSA results in decision-making toward proposing sustainability improvements for existing product systems. This paper is addressing this challenge by presenting an LCSA-based decision- ...
DOI:
10.3390/su10113863

2. A Life Table for Liriomyza trifolii (Diptera: Agromyzidae) in a Temperate Zone of Northeast Egypt With Key Factor Analysis

Author:
Marwa M Ramadan,   et al.   ; Mohamed H Bayoumy; Hager S Awadalla; J P Michaud;     Show all 4 Authors
Source:
Environmental entomology 2018 v.47 no.4 pp. 1047-1056
ISSN:
1938-2936
Subject:
Diglyphus isaea; Halticoptera; Liriomyza trifolii; Opius; Vicia faba; abnormal development; adults; biological control; crops; environmental factors; faba beans; factor analysis; larvae; leafminers; life tables; mortality; parasitism; parasitoids; predation; pupae; temperate zones; Egypt; Mediterranean region
Abstract:
... The American serpentine leaf miner, Liriomyza trifolii (Burgess) (Diptera: Agromyzidae), is a perennial pest of leguminous crops in the Mediterranean region. A life table was constructed for L. trifolii infesting broad bean, Vicia faba L., in northern Egypt. Key factor analysis was used to rank sources of immature mortality over two seasons. Leaf miners had three successive generations, and a part ...
DOI:
10.1093/ee/nvy086

3. A Localized Surface Plasmon Resonance Sensing Method for Simultaneous Determination of Atenolol and Amiloride in Pharmaceutical Dosage Forms and Urine Samples

Author:
Marwa R. El-Zahry
Source:
Journal of Analytical Methods in Chemistry (Online) 2018 v.2018 pp. -
ISSN:
2090-8873
Subject:
absorption; antihypertensive agents; chemical reduction; cost effectiveness; detection limit; drug formulations; hydroxylamine; nanoparticles; nanosilver; silver nitrate; surface plasmon resonance; synergism; urine
Abstract:
... This contribution describes a simple, fast, and sensitive application of localized surface plasmon resonance effect of silver nanoparticles for simultaneous determination of antihypertensive drugs’ mixture atenolol and amiloride in both pharmaceutical dosage forms and in biological samples (urine). Silver nanoparticles were prepared by chemical reduction of silver nitrate using hydroxylamine HCL i ...
DOI:
10.1155/2018/9065249
PubMed:
29576886
PubMed Central:
PMC5822805

4. A comparative study of sterically and electro-statically stabilized silver nanoparticles for the determination of muscle relaxant tizanidine: Insights of localized surface plasmon resonance, surface enhanced Raman spectroscopy and electrocatalytic activity

Author:
Marwa R. El-Zahry
Source:
Talanta 2018 v.186 pp. 229-237
ISSN:
0039-9140
Subject:
Raman spectroscopy; ambient temperature; ascorbic acid; chemistry; dielectric spectroscopy; glassy carbon electrode; guidelines; muscle relaxants; nanosilver; polyethylene glycol; quantitative analysis; reducing agents; stabilizers; surface plasmon resonance; transmission electron microscopes; ultraviolet-visible spectroscopy
Abstract:
... A comparative study of two types of silver nanoparticles was investigated. The effect of the surface chemistry of the studied silver nanoparticles (AgNPs) on their localized surface plasmon resonance was utilized for the quantitative determination of muscle relaxant tizanidine drug. The studied AgNPs are classified according to the type of stabilizing agent used in their synthesis into electrostat ...
DOI:
10.1016/j.talanta.2018.04.039

5. A nanoparticle-based method for culture-free bacterial DNA enrichment from whole blood

Author:
Marwa M. Hassan,   et al.   ; Andrea Ranzoni; Matthew A. Cooper;     Show all 3 Authors
Source:
Biosensors & bioelectronics 2018 v.99 pp. 150-155
ISSN:
0956-5663
Subject:
DNA; biosensors; blood; detection limit; diagnostic techniques; magnetism; point-of-care systems
Abstract:
... Point-of-care (POC) diagnostics are one of the quick and sensitive detection approaches used in current clinical applications, but always face a performance tradeoff between time-to-result and assay sensitivity. One critical setting where these limitations are evident is the detection of sepsis, where 6–10mL of whole blood may contain as little as one bacterial colony forming unit (cfu). The large ...
DOI:
10.1016/j.bios.2017.07.057

6. A novel Vip3Aa16-Cry1Ac chimera toxin: Enhancement of toxicity against Ephestia kuehniella, structural study and molecular docking

Author:
Marwa Cherif,   et al.   ; Sameh Sellami; Sonia Jemli; Nouha Abdelmalek; Lobna Abdelkefi-Mesrati; Slim Tounsi; Kais Jamoussi;     Show all 7 Authors
Source:
International journal of biological macromolecules 2018 v.117 pp. 752-761
ISSN:
0141-8130
Subject:
Bacillus thuringiensis; Ephestia kuehniella; bioassays; biopesticides; carbohydrate binding; crystal proteins; delta-endotoxins; hemolysins; insect resistance; insects; molecular models; plant protection; plasmids; receptors; toxicity
Abstract:
... Bacillus thuringiensis Vip3A protein has been widely used for crop protection and for delay resistance to existing insecticidal Cry toxins. During current study, a fusion between vip3Aa16 and the toxic core sequence of cry1Ac was constructed in pHT Blue plasmid. Vip3Aa16-Cry1Ac protein was expressed in the supernatant of B. thuringiensis with a size of about 150 kDa. Bioassays tested on Ephestia k ...
DOI:
10.1016/j.ijbiomac.2018.05.161

7. An engineered nanocomposite for sensitive and selective detection of mercury in environmental water samples

Author:
Marwa T. A. Abdel-Wareth,   et al.   ; Ibrahim H. Abdullah; Nashaat Ahmed; Mona A. Mohamed; Fawzy M. A. Ragab; Nageh K. Allam;     Show all 6 Authors
Source:
Analytical methods 2018 v.10 no.21 pp. 2526-2535
ISSN:
1759-9679
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; absorptivity; copper; detection limit; dielectric spectroscopy; electrochemistry; electrodes; graphene oxide; manganese; mercury; nanocomposites; nanotubes; pollutants; regression analysis; scanning electron microscopy; titanium dioxide; transmission electron microscopy
Abstract:
... We report on a novel carbon-based nanocomposite made of reduced graphene oxide/titania nanotubes (RGO/TNT) with excellent conductivity and absorptivity for the sensitive electrochemical determination of Hg(ii) as a water pollutant. Field emission scanning electron microscopy, high resolution transmission electron microscopy, X-ray diffraction, FTIR spectroscopy, cyclic voltammetry, and electrochem ...
DOI:
10.1039/c8ay00618k

8. Antigenic cross-reactivity between Schistosoma mansoni and pollen allergens from the birch tree (Betula verrucosa) and Timothy grass (Phleum pratense): involvement of shared glycan epitopes and implications for the hygiene hypothesis

Author:
Marwa El-Faham,   et al.   ; Joseph E. Igetei; Susan Liddell; Gabriele Schramm; Michael J. Doenhoff;     Show all 5 Authors
Source:
International journal for parasitology 2018 v.48 no.5 pp. 345-357
ISSN:
0020-7519
Subject:
Betula pendula subsp. pendula; Phleum pratense; Schistosoma mansoni; allergens; antibodies; cross reaction; eggs; epitopes; glutathione transferase; helminths; hygiene; hypersensitivity; immunoglobulin G; immunotherapy; invertebrates; mass spectrometry; patients; pollen; polysaccharides; rabbits; sequence analysis; trees
Abstract:
... Previous studies have shown that schistosome infection can protect against allergic symptoms, but the underlying mechanisms are still not fully understood. Here we have shown that rabbit IgG antibodies raised against Schistosoma mansoni soluble egg antigens (SmSEA) are cross-reactive with a wide array of molecules in Timothy grass pollen (TGP) and birch tree pollen (BTP). Five of the cross-reactiv ...
DOI:
10.1016/j.ijpara.2017.12.005

9. Antioxidant, antibacterial and in vivo wound healing properties of laminaran purified from Cystoseira barbata seaweed

Author:
Marwa Hamdi,   et al.   ; Sabrine Sellimi; Hana Maalej; Dorsaf Moalla Rekik; Abdelkarim Benslima; Ghada Ksouda; Zouheir Sahnoun; Suming Li; Moncef Nasri; Mohamed Hajji;     Show all 10 Authors
Source:
International journal of biological macromolecules 2018 v.119 pp. 633-644
ISSN:
0141-8130
Subject:
Cystoseira; Gram-negative bacteria; active ingredients; antibacterial properties; antioxidant activity; antioxidants; biodegradability; collagen; fibroblasts; histology; hydrophilicity; macroalgae; medicine; polysaccharides; rats; tissue repair; ultrafiltration
Abstract:
... Laminaran, a polysaccharide extracted from marine algae, exhibits attractive properties being non-toxic, hydrophilic and biodegradable. The aim of this study was to investigate the effectiveness of a cream based on the brown seaweed Cystoseira barbata laminaran (CBL) for healing full thickness wounds induced on rats. The antibacterial activity of CBL was evaluated against Gram positive and Gram ne ...
DOI:
10.1016/j.ijbiomac.2018.07.171

10. Appetite, energy intake and food reward responses to an acute High Intensity Interval Exercise in adolescents with obesity

Author:
Marwa Khammassi,   et al.   ; Maud Miguet; Alicia Fillon; Julie Masurier; Valérie Julian; Bruno Pereira; Céline Lambert; Yves Boirie; Martine Duclos; John Edward Blundell; Graham Finlayson; David Thivel;     Show all 12 Authors
Source:
Physiology & behavior 2018 v.195 pp. 90-97
ISSN:
0031-9384
Subject:
adolescents; appetite; body composition; body mass index; children; cross-over studies; energy intake; exercise; food choices; food intake; lunch; obesity; questionnaires; taste; test meals
Abstract:
... High Intensity Interval Exercise (HIIE) is currently advocated for its beneficial effect on body composition and cardio-metabolic health in children and adolescents with obesity; however its impact on appetite control and food intake remains unknown. The aim of the present study was to examine the effect of a single HIIE session on subsequent energy intake, appetite feelings and food reward in ado ...
DOI:
10.1016/j.physbeh.2018.07.018

11. Application of alginate and gelatin-based edible coating materials as alternatives to traditional coating for improving the quality of pastirma

Author:
Marwa Ragab Abdallah,   et al.   ; Mai Atef Mohamed; Hussein Mohamed; Mohamed Talaat. Emara;     Show all 4 Authors
Source:
Food science and biotechnology 2018 v.27 no.6 pp. 1589-1597
ISSN:
1226-7708
Subject:
carbon dioxide; cell respiration; coatings; color; edible films; gelatin; oxygen; sensory properties; sodium alginate; storage temperature; thiobarbituric acid-reactive substances
Abstract:
... This research was conducted to study the efficacy of sodium alginate and gelatin coating materials in improving the quality of pastirma. Pastirma was coated with traditional, alginate or gelatin coatings, stored at 4 °C for 4 weeks and examined weekly. Alginate and gelatin coated-pastirma revealed lower TBARS values which was within the acceptable limit (0.67 and 0.86 mg/kg) until the end of stora ...
DOI:
10.1007/s10068-018-0393-2
PubMed:
30483422
PubMed Central:
PMC6233409

12. Application of carbon sensors for potentiometric determination of copper(II) in water and biological fluids of Wilson disease patients. Studying the surface reaction using SEM, EDX, IR and DFT

Author:
Marwa El Badry Mohamed,   et al.   ; Eman Yossri Frag; Elham M. Fahim;     Show all 3 Authors
Source:
Biosensors & bioelectronics 2018 v.118 pp. 122-128
ISSN:
0956-5663
Subject:
Escherichia coli; Gram-negative bacteria; Gram-positive bacteria; Staphylococcus aureus; antibacterial properties; biosensors; blood serum; carbon; carbon electrodes; chemical reactions; copper; energy-dispersive X-ray analysis; hepatolenticular degeneration; metal ions; metformin; pH; patients; scanning electron microscopes; scanning electron microscopy; urine
Abstract:
... The performance characteristics of a new selective and sensitive modified screen printed electrode (MSPE; electrode I) and carbon paste electrode (MCPE; electrode II) based on 2-N, N-dimethylcarbamimidoyl (metformin) as modifier for the potentiometric determination of copper (II) in water sample, serum and urine samples of Wilson disease patients have been optimized. The chemical reaction which ha ...
DOI:
10.1016/j.bios.2018.07.024

13. Aquatic environmental risk assessment of chitosan/silver, copper and carbon nanotube nanocomposites as antimicrobial agents

Author:
Marwa S. Khattab,   et al.   ; Nermeen M. Abu-Elala; Huda O. AbuBakr; Samah H. Mohamed; Maha A. El-hady; Rehab A. Ghandour; Rania E. Morsi;     Show all 7 Authors
Source:
International journal of biological macromolecules 2018 v.113 pp. 1105-1115
ISSN:
0141-8130
Subject:
Aeromonas hydrophila; DNA damage; DNA fragmentation; Oreochromis niloticus; anti-infective agents; antimicrobial properties; apoptosis; carbon nanotubes; chitosan; copper; copper nanoparticles; environmental assessment; fish health; genes; gills; growth curves; interleukin-1beta; intestines; liver; minimum inhibitory concentration; nanocomposites; nanosilver; oxidative stress; risk assessment; silver; spleen; tumor necrosis factor-alpha; water purification
Abstract:
... Despite the potential antimicrobial and water purification benefits of chitosan-based nanocomposites, there are growing concerns regarding the hazards of leached nanoparticles (NPs) to the in-contact circumference. The antibacterial performance of the nanocomposites of chitosan with silver and copper NPs and carbon nanotubes was assessed with an emphasis on their impact on fish health. The minimal ...
DOI:
10.1016/j.ijbiomac.2018.03.047

14. Assessment of neurohepatic DNA damage in male Sprague–Dawley rats exposed to organophosphates and pyrethroid insecticides

Author:
Marwa F. Ali,   et al.   ; Doha Yahia;     Show all 2 Author
Source:
Environmental science and pollution research international 2018 v.25 no.16 pp. 15616-15629
ISSN:
0944-1344
Subject:
DNA; DNA damage; adults; blood serum; cerebellum; cerebrum; chlorpyrifos; comet assay; corn oil; cyhalothrin; dimethoate; gait; glutathione peroxidase; hindlimbs; histology; histopathology; lambda-cyhalothrin; liver; males; malondialdehyde; mutagens; neurotoxicity; oxidative stress; rats; tail
Abstract:
... The current work was undertaken to test the genotoxic potential of chlorpyrifos (CPF), dimethoate, and lambda cyhalothrin (LCT) insecticides in rat brain and liver using the single cell gel electrophoresis (comet assay). Three groups of adult male Sprague–Dawley rats were exposed orally to one third LD₅₀of CPF, dimethoate, or LCT for 24 and 48 h while the control group received corn oil. Serum sam ...
DOI:
10.1007/s11356-018-1776-x

15. Association of SPARC gene polymorphisms rs3210714 and rs7719521 with VEGF expression and utility of Nottingham Prognostic Index scoring in breast cancer in a sample of Egyptian women

Author:
Marwa N. Abdelhafez,   et al.   ; Sultan Bawazeer; Dina Sabry; Rania H. Mahmoud; Hala M. Elhanbuli; Noha N. Yassen;     Show all 6 Authors
Source:
Molecular biology reports 2018 v.45 no.6 pp. 2313-2324
ISSN:
0301-4851
Subject:
alleles; breast neoplasms; cysteine; females; genotyping; immunohistochemistry; models; patients; prediction; prognosis; protein secretion; risk; single nucleotide polymorphism; vascular endothelial growth factors; women
Abstract:
... Breast cancer is the most common malignancy in women. To our knowledge, there is no single study conducted on the role of secreted protein acidic and rich in cysteine (SPARC) gene polymorphism in breast cancer risk or prognosis. The present study aims to investigate the probable role of SPARC genetic polymorphisms in development of breast cancer; their correlation with immunohistochemical expressi ...
DOI:
10.1007/s11033-018-4394-2

16. Association of TNF-α-308 Polymorphism with Susceptibility to Autoimmune Hepatitis in Tunisians

Author:
Marwa Chaouali,   et al.   ; Mouna Ben Azaiez; Aymen Tezeghdenti; Awatef Lagha; Basma Yacoubi-Oueslati; Ezzeddine Ghazouani; Hatem Ben Abdallah; Radhia Kochkar;     Show all 8 Authors
Source:
Biochemical genetics 2018 v.56 no.6 pp. 650-662
ISSN:
0006-2928
Subject:
alleles; antibodies; autoimmune hepatitis; blood serum; etiology; genetic polymorphism; genotype; immune response; pathogenesis; patients; polymerase chain reaction; tumor necrosis factor-alpha
Abstract:
... Autoimmune hepatitis (AIH) is a chronic hepatitis of unknown etiology and several proinflammatory cytokines are implicated in its pathogenesis. The association of TNF-α gene polymorphism with AIH onset is not fully elucidated especially in the Tunisian population. The aim of this study was to determine the association of TNF-α (-308 G > A) polymorphism with AIH susceptibility and with TNF-α expres ...
DOI:
10.1007/s10528-018-9867-4

17. Biofilm testing of microbiota: An essential step during corneal scrap examination in Egyptian acanthamoebic keratitis cases

Author:
Marwa A. Hasby Saad,   et al.   ; Haidy S.M. Khalil;     Show all 2 Author
Source:
Parasitology international 2018 v.67 no.5 pp. 556-564
ISSN:
1383-5769
Subject:
Acanthamoeba; Acinetobacter; Aspergillus; Candida; Corynebacterium; Pseudomonas; Streptococcus pneumoniae; antibiotic resistance; antibiotics; biofilm; clinical examination; cornea; drugs; fungi; histopathology; keratitis; mixed infection; scanning electron microscopy; therapeutics; tissue culture
Abstract:
... To detect co-infections in the culture-proven acanthamoebic keratitis (AK) cases, and to test the capability of biofilm formation in the isolated microbiota. The clinical findings, habit of wearing contact lens and in-vitro antibiotic resistance were analyzed further according to the biofilm formation capability.After clinical examination, corneal scraps and swabs were taken from 240 clinically su ...
DOI:
10.1016/j.parint.2018.05.001

18. Chemical characterization, antioxidant and anti-inflammatory properties of Greek Thymus vulgaris extracts and their possible synergism with Egyptian Chlorella vulgaris

Author:
Marwa M. Abu Serie,   et al.   ; Noha H. Habashy; Wafaa E. Attia; Samir A.M. Abdelgaleil;     Show all 4 Authors
Source:
Journal of functional foods 2018 v.40 pp. 317-328
ISSN:
1756-4646
Subject:
Chlorella vulgaris; Thymus vulgaris; anti-inflammatory activity; antioxidant activity; antioxidants; inducible nitric oxide synthase; inflammation; mixing; nitric oxide; oils; oxidative stress; peroxidation; phytopharmaceuticals; prostaglandin synthase; synergism; triterpenoids; tumor necrosis factor-alpha
Abstract:
... The present work examined the functional constituents, antioxidant and anti-inflammatory activities of Greek Thymus vulgaris (TV) oil and water extracts. Also, the possible synergism between Egyptian Chlorella vulgaris ethanolic extract (CVE) and TV oil or water extracts was evaluated. The phytochemicals, total antioxidant capacity, reducing power, antiradical, and anti-lipid peroxidation abilitie ...
DOI:
10.1016/j.jff.2017.11.022

19. Chitosan-silver nanocomposites in goldfish aquaria: A new perspective in Lernaea cyprinacea control

Author:
Marwa M. Attia,   et al.   ; Nermeen M. Abu-Elala; Reham M. Abd-Elsalam;     Show all 3 Authors
Source:
International journal of biological macromolecules 2018 v.111 pp. 614-622
ISSN:
0141-8130
Subject:
Carassius auratus; Lernaea cyprinacea; antiparasitic agents; aquariums; bacteria; females; fungi; glass; goldfish; humans; lethal concentration 50; morphometry; mortality; nanocomposites; nanomedicine; nanoparticles; parasites; polymerase chain reaction; predators; probit analysis; ribosomal RNA; scanning electron microscopy; spring; transmission electron microscopy; veterinary medicine; viruses
Abstract:
... Nanomedicine is a promising new research area in human and veterinary science. Metal nanoparticles have shown high biocidal activity against bacteria, fungi and viruses, few studies have focused on antiparasitic action. Therefore, this study aims to investigate the influence of chitosan-silver nanocomposites on the fish crustacean parasite Lernaea cyprinacea. The disease was detected in goldfish ( ...
DOI:
10.1016/j.ijbiomac.2017.12.133

20. Chronic health disparities among refugee and immigrant children in Canada

Author:
Marwa Farag,   et al.   ; Ginny Lane; Judy White; Christine Nisbet; Hassan Vatanparast;     Show all 5 Authors
Source:
Applied physiology, nutrition and metabolism 2018 v.43 no.10 pp. 1043-1058
ISSN:
1715-5320
Subject:
anthropometric measurements; blood; body composition; children; cholesterol; chronic diseases; cross-sectional studies; developing countries; diet; experimental design; food security; growth retardation; health services; immigration; interviews; lifestyle; nutritional status; obesity; parents; physical activity; public health; refugees; social structure; socioeconomic status; Canada
Abstract:
... There are knowledge gaps in our understanding of the development of chronic disease risks in children, especially with regard to the risk differentials experienced by immigrants and refugees. The Healthy Immigrant Children study employed a mixed-methods cross-sectional study design to characterize the health and nutritional status of 300 immigrant and refugee children aged 3–13 years who had been ...
DOI:
10.1139/apnm-2017-0407

21. Climate change-induced heat risks for migrant populations working at brick kilns in India: a transdisciplinary approach

Author:
Marwa Dabaieh,   et al.   ; Karin Lundgren-Kownacki; Siri M. Kjellberg; Pernille Gooch; Latha Anandh; Vidhya Venugopal;     Show all 6 Authors
Source:
International journal of biometeorology 2018 v.62 no.3 pp. 347-358
ISSN:
0020-7128
Subject:
bioclimatology; bricks; case studies; climate; climate change; environmental sustainability; heat; heat stress; humans; industry; kilns; melting; migrant workers; pavements; people; quality of life; risk; solar drying; summer; warm season; India
Abstract:
... During the summer of 2015, India was hit by a scorching heat wave that melted pavements in Delhi and caused thousands of deaths, mainly among the most marginalized populations. One such group facing growing heat risks from both occupational and meteorological causes are migrant brick kiln workers. This study evaluates both current heat risks and the potential future impacts of heat caused by clima ...
DOI:
10.1007/s00484-017-1476-0
PubMed:
29189970
PubMed Central:
PMC5854725

22. Clinical, Molecular, and Computational Analysis in two cases with mitochondrial encephalomyopathy associated with SUCLG1 mutation in a consanguineous family

Author:
Marwa Maalej; Marwa Ammar,   et al.   ; Amel Tej; Jihène Bouguila; Samia Tilouche; Senda Majdoub; Boudour Khabou; Mouna Tabbebi; Rahma Felhi; Emna Mkaouar-Rebai; Leila Keskes; Lamia Boughamoura; Faiza Fakhfakh;     Show all 13 Authors
Source:
Biochemical and biophysical research communications 2018 v.495 no.2 pp. 1730-1737
ISSN:
0006-291X
Subject:
acidosis; computer simulation; exons; homozygosity; ligases; methionine; mitochondria; mutation; mutational analysis; quantitative polymerase chain reaction; research; threonine
Abstract:
... Deficiency of the mitochondrial enzyme succinyl COA ligase (SUCL) is associated with encephalomyopathic mtDNA depletion syndrome and methylmalonic aciduria. This disorder is caused by mutations in both SUCL subunits genes: SUCLG1 (α subnit) and SUCLA2 (β subnit). We report here, two Tunisian patients belonging to a consanguineous family with mitochondrial encephalomyopathy, hearing loss, lactic ac ...
DOI:
10.1016/j.bbrc.2017.12.011

23. Cytochrome C oxydase deficiency: SURF1 gene investigation in patients with Leigh syndrome

Author:
Marwa Maalej; Marwa Kharrat; Marwa Ammar,   et al.   ; Thouraya Kammoun; Olfa Alila-Fersi; Rahma Felhi; Emna Mkaouar-Rebai; Leila Keskes; Mongia Hachicha; Faiza Fakhfakh;     Show all 10 Authors
Source:
Biochemical and biophysical research communications 2018 v.497 pp. 1043-1048
ISSN:
0006-291X
Subject:
ataxia (disorder); atrophy; bioinformatics; cytochrome c; genes; growth retardation; homozygosity; infancy; mitochondria; mutation; mutational analysis; neurodegenerative diseases; patients; respiratory tract diseases; screening; seizures; sequence diversity
Abstract:
... Leigh syndrome (LS) is a rare progressive neurodegenerative disorder occurring in infancy. The most common clinical signs reported in LS are growth retardation, optic atrophy, ataxia, psychomotor retardation, dystonia, hypotonia, seizures and respiratory disorders. The paper reported a manifestation of 3 Tunisian patients presented with LS syndrome. The aim of this study is the MT[HYPHEN]ATP6 and ...
DOI:
10.1016/j.bbrc.2018.02.169

24. Cytotoxic activity of alkyl benzoate and fatty acids from the red sea sponge Hyrtios erectus

Author:
Marwa M. Monier,   et al.   ; Usama W. Hawas; Lamia T. Abou El-Kassem; Mohamed S. Abdelfattah; Mohammed I. Y. Elmallah; Mennat Allah G. Eid; N. Marimuthu;     Show all 7 Authors
Source:
Natural product research 2018 v.32 no.12 pp. 1369-1374
ISSN:
1478-6427
Subject:
Porifera; adenocarcinoma; breasts; butanol; cytotoxicity; fatty acids; gas chromatography-mass spectrometry; hepatoma; hexane; inhibitory concentration 50; methylene chloride; neoplasm cells; nuclear magnetic resonance spectroscopy; oxysterols; symbionts; Red Sea
Abstract:
... The chemical investigation of the methylene chloride fraction of marine sponge Hyrtios erectus led to the isolation of the known oxysterol (2) along with a new alkyl benzoate compound identified by spectroscopic methods (NMR and MS) as 4′-methylheptyl benzoate (1), whilst the n-butanol fraction afforded the known indole 3-carbaldehyde and β-carboline derivatives. Moreover, the hexane fraction was ...
DOI:
10.1080/14786419.2017.1344662

25. Defeating Fluorosis in the East African Rift Valley: Transforming the Kilimanjaro into a Rainwater Harvesting Park

Author:
Janeth Marwa,   et al.   ; Mesia Lufingo; Chicgoua Noubactep; Revocatus Machunda;     Show all 4 Authors
Source:
Sustainability 2018 v.10 no.11 pp. -
ISSN:
2071-1050
Subject:
cost effectiveness; defluoridation; drinking water; filters; fluorides; fluorosis; geochemistry; groundwater; iron; mixing; mountains; pathogens; pollutants; pollution; rain; water harvesting; water supply
Abstract:
... The high availability of fluoride in surface and groundwater in the East African Rift Valley was documented during the colonial period. Since the early 1960s, many studies have been conducted to solve the fluorosis crisis in this region. At present, no cost-effective solution to mitigate fluoride contamination is available for the large majority of the population. This situation prompted a process ...
DOI:
10.3390/su10114194

26. Detailed characterization of a mist chamber for the collection of water-soluble organic gases

Author:
Marwa M.H. El-Sayed,   et al.   ; Christopher J. Hennigan; Alma Hodzic;     Show all 3 Authors
Source:
Atmospheric environment 2018 v.188 pp. 12-17
ISSN:
1352-2310
Subject:
alcohols; alpha-pinene; atmospheric chemistry; carboxylic acids; gases; mists; moieties; photooxidation; troposphere; volatile organic compounds; water solubility
Abstract:
... Mist chambers (MC) have been used for decades to sample water-soluble gases in atmospheric studies. Herein, we characterize the use of a mist chamber for the collection of oxygenated organic gases, with a focus on intermediate solubility compounds to better constrain the transition from low-to-high collection efficiency. The investigated compounds span a range in Henry's law constants (KH, 2.5 × 1 ...
DOI:
10.1016/j.atmosenv.2018.06.019

27. Determination of voriconazole and co-administered drugs in plasma of pediatric cancer patients using UPLC-MS/MS: A key step towards personalized therapeutics

Author:
Marwa T. Elrakaiby,   et al.   ; Medhat A. Al-Ghobashy; Samah M. Kamal; Ghada M. El-Sayed; Ali K. Attia; Mohamed Nagy; Ahmed ElZeiny; Mohammed M. Nooh; Maggie Abbassi; Ramy K. Aziz;     Show all 10 Authors
Source:
Journal of chromatography 2018 v.1092 pp. 489-498
ISSN:
1570-0232
Subject:
Food and Drug Administration; aspergillosis; drug interactions; drugs; genetic polymorphism; guidelines; ionization; liquid chromatography; liquid-liquid extraction; models; monitoring; mortality; neoplasms; patients; physicochemical properties; quality control; solvents; tandem mass spectrometry; therapeutics
Abstract:
... Untreated invasive aspergillosis results in high mortality rate in pediatric cancer patients. Voriconazole (VORI), the first line of treatment, requires strict dose monitoring because of its narrow therapeutic index and individual variation in plasma concentration levels. Commonly co-administered drugs; either Esomeprazole (ESO) or Ondansetron (OND) have reported drug-drug interaction with VORI th ...
DOI:
10.1016/j.jchromb.2018.06.043

28. Development of a controlled bioconversion process for the recovery of chitosan from blue crab (Portunus segnis) exoskeleton

Author:
Marwa Hamdi,   et al.   ; Sawssen Hajji; Sawsan Affes; Wafa Taktak; Hana Maâlej; Moncef Nasri; Rim Nasri;     Show all 7 Authors
Source:
Food hydrocolloids 2018 v.77 pp. 534-548
ISSN:
0268-005X
Subject:
2,2-diphenyl-1-picrylhydrazyl; Fourier transform infrared spectroscopy; Portunus; X-ray diffraction; acetylation; adhesion; antimicrobial properties; antioxidant activity; beta-carotene; biofilm; biotransformation; bleaching; chitin; chitosan; crabs; exoskeleton; functional properties; growth retardation; hydrochloric acid; hydrocolloids; hydroxyl radicals; microorganisms; minerals; proteinases
Abstract:
... The present work aimed to extract chitin and chitosan from blue crab (Portunus segnis) shells, via an optimized procedure keeping as much as possible its native structure. Thus, several microbial, visceral and commercial proteases were tested for their deproteinization efficiency. High levels of protein removal of about 82% and 85% were recorded using Bacillus safensis proteases and crude enzyme e ...
DOI:
10.1016/j.foodhyd.2017.10.031

29. Development of a reversed phase liquid chromatographic method for analysis of pyridoxal‐5′‐phosphate and its impurities

Author:
Marwa Fouad Mansour,   et al.   ; Micheal Assefa; Ahmed El‐Khouly; Peixi Zhu; Ann Van Schepdael; Erwin Adams;     Show all 6 Authors
Source:
Electrophoresis 2018 v.39 no.20 pp. 2540-2549
ISSN:
0173-0835
Subject:
acetonitrile; ammonium; chemical species; electrophoresis; formates; formic acid; ionization; liquid chromatography; pyridoxal phosphate; quality control; spectrometers
Abstract:
... Since no proper method is available in literature for the analysis of pyridoxal‐5′‐phosphate, a reversed phase liquid chromatographic method was developed and validated for specificity, sensitivity, linearity, precision and accuracy. Nine potential related substances and forced degradation products could be successfully separated from the main peak. The separation was achieved on a Polaris C18 col ...
DOI:
10.1002/elps.201800066

30. Dual-targeted casein micelles as green nanomedicine for synergistic phytotherapy of hepatocellular carcinoma

Author:
Marwa Sallam,   et al.   ; Mona A. Abdelmoneem; Mazen Mahmoud; Amira Zaky; Maged W. Helmy; Jia-You Fang; Kadria A. Elkhodairy; Ahmed O. Elzoghby;     Show all 8 Authors
Source:
Journal of controlled release 2018 v.287 pp. 78-93
ISSN:
0168-3659
Subject:
angiogenesis; apoptosis; berberine; casein; crosslinking; cytotoxicity; deoxycholic acid; encapsulation; folic acid; hepatoma; herbal medicines; histopathology; human cell lines; hydrophobicity; image analysis; immunohistochemistry; mice; micelles; nanomedicine; necrosis; phytopharmaceuticals; phytotherapy; spray drying; staining; transcription factor NF-kappa B; tumor necrosis factor-alpha; water solubility
Abstract:
... In recent years, green nanomedicines have made transformative difference in cancer therapy researches. Herein, we propose dual-functionalized spray-dried casein micelles (CAS-MCs) for combined delivery of two phytochemicals; berberine (BRB) and diosmin (DSN) as targeted therapy of hepatocellular carcinoma (HCC). The nanomicelles enabled parenteral delivery of the poorly soluble DSN via its encapsu ...
DOI:
10.1016/j.jconrel.2018.08.026

31. Effect of valproic acid alone or combined with low dose gamma irradiation in modulating PTZ-induced convulsions in rats involving AKT/m-TOR pathway

Author:
Marwa M. Safar,   et al.   ; Dina M. Lotfy; Seham H. Mohamed; Sanaa A. Kenawy;     Show all 4 Authors
Source:
Life sciences 2018 v.212 pp. 261-266
ISSN:
0024-3205
Subject:
behavior change; brain; caspase-3; gamma radiation; gamma-aminobutyric acid; glutathione; histopathology; malondialdehyde; neurotransmitters; nitric oxide; non-specific serine/threonine protein kinase; oxidative stress; rapamycin; rats; seizures; valproic acid
Abstract:
... The current study evaluates the anticonvulsant effect of valproic acid (VPA) alone or combined with low dose γ-irradiation (LDR) against pentylenetetrazol-induced convulsions in rats.Five groups of rats were used, group I served as normal control, group II served as PTZ- control and the other three groups were pretreated with single LDR(o.5 Gy), VPA(150 mg/kg i.p.5 days) and VPA with LDR respectiv ...
DOI:
10.1016/j.lfs.2018.10.007

32. Effects of seasonal variation, group size and sex on the activity budget and diet composition of the addax antelope

Author:
Marwa Kechnebou,   et al.   ; Hicham Seri; Mohsen Chammem; Luis MM Ferreira; Touhami Khorchani; Severiano R Silva;     Show all 6 Authors
Source:
African journal of range & forage science 2018 v.35 no.2 pp. 89-100
ISSN:
1727-9380
Subject:
Addax nasomaculatus; adults; antelopes; climatic factors; diet; dry season; feces; forage; grazing; group size; herbaceous plants; males; national parks; seasonal variation; social structure; wet season; wildlife management; Tunisia
Abstract:
... Behaviour and diet composition are critical elements in conservation biology within the scope of reintroduction programs. Here we focused on addax (Addax nasomaculatus), a Critically Endangered antelope species, in the Jbil National Park, Tunisia. In this study, we advanced the hypothesis that season, day period, sex and social structure have an effect on the activity budgets and diet composition ...
DOI:
10.2989/10220119.2018.1477831

33. Electrochemical detection of influenza virus H9N2 based on both immunomagnetic extraction and gold catalysis using an immobilization-free screen printed carbon microelectrode

Author:
Marwa Arbi,   et al.   ; Maher Sayhi; Oussama Ouerghi; Kamel Belgacem; Yudum Tepeli; Abdeljalil Ghram; Ülkü Anik; Lars Österlund; Dhafer Laouini; Mohamed Fethi Diouani;     Show all 10 Authors
Source:
Biosensors & bioelectronics 2018 v.107 pp. 170-177
ISSN:
0956-5663
Subject:
Influenza A virus; allantoic fluid; antibodies; biosensors; carbon; carbon electrodes; catalytic activity; electrochemistry; fetuins; gold; hydrogen ions; influenza; iron; magnetism; nanogold; nanoparticles; rapid methods; receptors; viral load; viruses
Abstract:
... Influenza is a viral infectious disease considered as a source of many health problems and enormous socioeconomic disruptions. Conventional methods are inadequate for in-field detection of the virus and generally suffer from being laborious and time-consuming. Thus, studies aiming to develop effective alternatives to conventional methods are urgently needed. In this work, we developed an approach ...
DOI:
10.1016/j.bios.2018.02.018

34. Emerging role of nutrition and the non-coding landscape in type 2 diabetes mellitus: A review of literature

Author:
Marwa Matboli,   et al.   ; Ayman Shafei; Mahmoud Ali; Kamal M. Kamal; Mahmoud Noah; Paula Lewis; Abdulrahman Habashy; Mohamed Ehab; Ahmed I. Gaber; Hana Abdelzaher;     Show all 10 Authors
Source:
Gene 2018 v.675 pp. 54-61
ISSN:
0378-1119
Subject:
biomarkers; dietary supplements; disease course; genetic markers; intergenic DNA; non-coding RNA; noninsulin-dependent diabetes mellitus; nutritional intervention; pathogenesis; sequence analysis; telomeres; transfer RNA
Abstract:
... With the advent of recent advances in molecular techniques and whole genome sequencing, we have come to know that the non-coding landscape (including non-coding RNAs, tRNAs and even telomeres) plays a major role in the regulation of cellular processes. Furthermore, the deregulation of this landscape has been found to contribute to and even bring about the pathogenesis of a large number of diseases ...
DOI:
10.1016/j.gene.2018.06.082

35. Encapsulation of carotenoids extracted from halophilic Archaea in oil-in-water (O/W) micro- and nano-emulsions

Author:
Marwa Chaari,   et al.   ; Ioanna Theochari; Vassiliki Papadimitriou; Aristotelis Xenakis; Emna Ammar;     Show all 5 Authors
Source:
Colloids and surfaces 2018 v.161 pp. 219-227
ISSN:
0927-7765
Subject:
Archaea; antioxidant activity; bioavailability; carotenoids; colloids; dispersions; electron paramagnetic resonance spectroscopy; emulsifiers; encapsulation; functional foods; glycerol; homogenization; light scattering; limonene; nanoemulsions; oils; systems engineering; water solubility
Abstract:
... Carotenoids extracted from halophilc Archaea have potential health benefits. Their poor water-solubility and low bioavailability is a challenge to their incorporation into foods. The aim of this work was the carotenoids encapsulation into two oil-in-water (O/W) dispersions, to increase their use as functional food applications. A nanoemulsion produced by high pressure homogenization and a spontane ...
DOI:
10.1016/j.colsurfb.2017.10.042

36. Enhancement of microalgal growth and biocomponent-based transformations for improved biofuel recovery: A review

Author:
Marwa M. El-Dalatony,   et al.   ; El-Sayed Salama; Jae-Hoon Hwang; Mayur B. Kurade; Akhil N. Kabra; Reda A.I. Abou-Shanab; Ki-Hyun Kim; Il-Seung Yang; Sanjay P. Govindwar; Sunjoon Kim; Byong-Hun Jeon;     Show all 11 Authors
Source:
Bioresource technology 2018 v.258 pp. 365-375
ISSN:
0960-8524
Subject:
abiotic stress; biofuels; biomass production; carbohydrates; coculture; feedstocks; flue gas; fuel production; lipids; microalgae; microorganisms; models; plant hormones; salts
Abstract:
... Microalgal biomass has received much attention as feedstock for biofuel production due to its capacity to accumulate a substantial amount of biocomponents (including lipid, carbohydrate, and protein), high growth rate, and environmental benefit. However, commercial realization of microalgal biofuel is a challenge due to its low biomass production and insufficient technology for complete utilizatio ...
DOI:
10.1016/j.biortech.2018.02.006

37. Essential Oil Composition and Anticholinesterase Activity Evaluation of Achillea fragrantissima Growing Wild in Jordan

Author:
Marwa N. Abuaisheh,   et al.   ; Hala I. Al-Jaber; Musa H. Abu Zarga; Amal F. Al-Aboudi; Mahmoud A. Al-Qudah; Ali F. Al-Shawabkeh; Ismail F. Abaza; Fatma U. Afifi;     Show all 8 Authors
Source:
Journal of herbs, spices & medicinal plants 2018 v.24 no.3 pp. 272-281
ISSN:
1540-3580
Subject:
Achillea; Alzheimer disease; acetylcholinesterase; cholinesterase; cognition; enzyme activity; essential oils; ethyl acetate; flowering; gas chromatography-mass spectrometry; inhibitory concentration 50; monoterpenoids; oils; solvents; wild plants; Jordan
Abstract:
... The composition of hydro-distilled oils of Achillea fragrantissima inflorescence (fresh and dry) at the pre- and flowering stages was evaluated by Gas Chromatography/Mass Spectrometry (GC/MS). Additionally, the essential oil and solvent extracts of the dried inflorescence were assayed for their inhibitory effect against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE). All essential oi ...
DOI:
10.1080/10496475.2018.1463933

38. Exertional heat illness: knowledge and behavior among construction workers

Author:
Marwa B. Awad Allah,   et al.   ; Dalia A. El-Shafei; Sarah A. Bolbol; Amira E. Abdelsalam;     Show all 4 Authors
Source:
Environmental science and pollution research international 2018 v.25 no.32 pp. 32269-32276
ISSN:
0944-1344
Subject:
body water; color; death; education programs; health education; health hazards; heat; muscles; pain; risk; specific gravity; sweating; temperature; urine; working conditions
Abstract:
... Construction workers are considered one of the most vulnerable health group workers. Exertional heat illness (EHI) is a well-recognized health hazard that causes significant sickness and death. The purpose of this study was to assess construction workers’ environment and hydration status and to evaluate the effect of health education program on workers. An interventional study was conducted on 89 ...
DOI:
10.1007/s11356-018-3211-8

39. Extracellular mycosynthesis of gold nanoparticles using Trichoderma hamatum: optimization, characterization and antimicrobial activity

Author:
M. Marwa Abdel‐Kareem,   et al.   ; A.A. Zohri;     Show all 2 Author
Source:
Letters in applied microbiology 2018 v.67 no.5 pp. 465-475
ISSN:
0266-8254
Subject:
Fourier transform infrared spectroscopy; Trichoderma hamatum; antimicrobial properties; biosynthesis; culture filtrates; fungi; gold; ions; mycelium; nanogold; nanoparticles; pH; proteins; streptomycin; transmission electron microscopy; virulent strains
Abstract:
... Synthesis of gold nanoparticles (AuNPs) has become a needed domain of applied science. Biological method for synthesis of AuNPs by Trichoderma hamatum SU136 aqueous mycelial extract was achieved. The culture filtrate of the fungus was exposed to three different concentrations of gold chloride. The culture filtrate of the fungus was exposed to three different concentrations of gold chloride (0·25, ...
DOI:
10.1111/lam.13055

40. First description of a novel mitochondrial mutation in the MT-TI gene associated with multiple mitochondrial DNA deletion and depletion in family with severe dilated mitochondrial cardiomyopathy

Author:
Marwa Maalej,   et al.   ; Olfa Alila-Fersi; Mouna Tabebi; Neila Belguith; Leila Keskes; Emna Mkaouar-Rebai; Faiza Fakhfakh;     Show all 7 Authors
Source:
Biochemical and biophysical research communications 2018 v.497 pp. 1049-1054
ISSN:
0006-291X
Subject:
blood; cardiomyopathy; genes; mitochondria; mitochondrial DNA; mitochondrial genome; mucosa; mutation; oxidative phosphorylation; patients; screening; transfer RNA
Abstract:
... Mitochondria are essential for early cardiac development and impaired mitochondrial function was described associated with heart diseases such as hypertrophic or dilated mitochondrial cardiomyopathy.In this study, we report a family including two individuals with severe dilated mitochondrial cardiomyopathy. The whole mitochondrial genome screening showed the presence of several variations and a no ...
DOI:
10.1016/j.bbrc.2018.02.173

41. First survey on association of TMEM154 and CCR5 variants with serological maedi-visna status of sheep in German flocks

Author:
Marwa Eltanany,   et al.   ; Vahid Molaee; Gesine Lühken;     Show all 3 Authors
Source:
Veterinary research 2018 v.49 no.1 pp. 36
ISSN:
1297-9716
Subject:
CCR5 receptor; Lentivirus; Texel; amino acid substitution; breeding; chemokines; enzyme-linked immunosorbent assay; flocks; genes; genotyping; polymerase chain reaction; proviruses; sheep; surveys; transmembrane proteins; veterinary medicine; Germany
Abstract:
... Maedi-visna, a disease caused by small ruminant lentiviruses (SRLVs), is present in sheep from many countries, also including Germany. An amino acid substitution (E/K) at position 35 of the transmembrane protein 154 (TMEM154) as well as a deletion in the chemokine (C-C motif) receptor type 5 gene (CCR5) were reported to be associated with the serological MV status and/or the SRLV provirus concentr ...
DOI:
10.1186/s13567-018-0533-y
PubMed:
29673399
PubMed Central:
PMC5909245

42. GPS tracking during parental care does not affect early offspring development in lesser black-backed gulls

Author:
Marwa M. Kavelaars,   et al.   ; Eric Stienen; Hans Matheve; Roland-Jan Buijs; Luc Lens; Wendt Müller;     Show all 6 Authors
Source:
Marine biology 2018 v.165 no.5 pp. 87
ISSN:
0025-3162
Subject:
Larus fuscus; fledglings; foraging; global positioning systems; nestlings; parental behavior; parents; physiology; progeny; seabirds
Abstract:
... Tracking devices are increasingly used to monitor individual movement patterns continuously and in high resolution. However, carrying a device could potentially compromise an individual’s physiology or behaviour, thereby making tracking data unreliable for detailed behavioural measurements. To this end, we assessed the possible consequences of the application of GPS devices on offspring developmen ...
DOI:
10.1007/s00227-018-3347-6

43. Genome sequence analysis of a novel Bacillus thuringiensis strain BLB406 active against Aedes aegypti larvae, a novel potential bioinsecticide

Author:
Marwa Kharrat,   et al.   ; Raida Zribi Zghal; Kais Ghedira; Jihen Elleuch; Slim Tounsi;     Show all 5 Authors
Source:
International journal of biological macromolecules 2018 v.116 pp. 1153-1162
ISSN:
0141-8130
Subject:
Aedes aegypti; Bacillus thuringiensis; antineoplastic activity; bioinformatics; biopesticides; crystal proteins; genes; high-throughput nucleotide sequencing; insect resistance; larvae; larvicides; nucleotide sequences; toxins
Abstract:
... BLB406 is a novel isolate of Bacillus thuringiensis with a larvicidal activity against Aedes aegypti larvae. It displays original plasmidic and crystal protein patterns.The present work reported molecular and bioinformatic analyses for the genome sequence of BLB406 using MiSeq Illumina next-generation sequencing technology. The reads were assembled by Velvet tool. Using RAST program and PGAAP, the ...
DOI:
10.1016/j.ijbiomac.2018.05.119

44. Geochemistry of El-Salam Canal and the adjacent groundwater in north Sinai, Egypt: an application to a water treatment process using magnetic zeolite nanoparticles

Author:
Marwa El Kady,   et al.   ; Thanaa Shalaby; Mustafa Eissa; Suzan Abd El-Gaber;     Show all 4 Authors
Source:
Applied water science 2018 v.8 no.4 pp. 105
ISSN:
2190-5487
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; aluminum; aquifers; arid zones; coasts; copper; coprecipitation; crystal structure; drinking water; energy-dispersive X-ray analysis; geochemistry; groundwater; heavy metals; hydrochemistry; iron; irrigation; irrigation water; magnetic materials; magnetism; models; nanocomposites; nanoparticles; pH; scanning electron microscopy; seepage; sorption isotherms; surface water; temperature; thermal stability; transmission electron microscopy; water pollution; water shortages; water treatment; zeolites; zinc; Egypt; Mediterranean region
Abstract:
... Water shortage is among the critical challenges facing many countries located in the arid zone of the southern the Mediterranean region. In the northern Sinai, El-Salam Canal and shallow groundwater in the Quaternary aquifer are considered the main irrigation sources for reclamation of 62,000 acres situated along the Mediterranean coast. The chemistry of surface water of El-Salam Canal varies grea ...
DOI:
10.1007/s13201-018-0741-7

45. Ghrelin gene polymorphism as a genetic biomarker for prediction of therapy induced clearance in Egyptian chronic HCV patients

Author:
Marwa Hamdy,   et al.   ; Samar Kamal Kassim; Eman Khairy; Mohsen Maher; Khaled Amr Mansour; Ashraf M Albreedy;     Show all 6 Authors
Source:
Gene 2018 v.649 pp. 74-79
ISSN:
0378-1119
Subject:
alleles; anti-inflammatory activity; biomarkers; blood serum; cell proliferation; chronic hepatitis C; enzyme-linked immunosorbent assay; gene frequency; genetic variation; genomics; genotype; genotyping; ghrelin; hepatoma; humans; liver; liver cirrhosis; patients; prediction; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction; single nucleotide polymorphism; therapeutics
Abstract:
... Ghrelin (GHRL) has important implications for liver disease. It has anti-inflammatory effects, regulates cell proliferation, modulates the fibrogenic response and protects liver tissue. Genetic variations in the GHRL gene may play a crucial role in the development of chronic hepatitis (CH), liver cirrhosis (LC) and hepatocellular carcinoma (HCC). Therefore, we examined the association of GHRL gene ...
DOI:
10.1016/j.gene.2018.01.077

46. Green gas chromatographic stability-indicating method for the determination of Lacosamide in tablets. Application to in-vivo human urine profiling

Author:
Marwa A.A. Ragab,   et al.   ; Mohamed A. Korany; Hoda Mahgoub; Rim S. Haggag; Osama A. Elmallah;     Show all 5 Authors
Source:
Journal of chromatography 2018 v.1083 pp. 75-85
ISSN:
1570-0232
Subject:
drug formulations; drugs; gas chromatography; guidelines; humans; monitoring; urinalysis; urine
Abstract:
... A direct, eco-friendly, stability-indicating GC method was developed for the determination of Lacosamide (LCM) in tablet dosage forms in presence of its degradation products as well as in human urine in presence of the co-administered drug Zonisamide (ZON). The assay method in tablets was validated according to the ICH guidelines, while the method for determination of LCM in urine was validated ac ...
DOI:
10.1016/j.jchromb.2018.02.033

47. Green synthesis of antimicrobial and antitumor N,N,N-trimethyl chitosan chloride/poly (acrylic acid)/silver nanocomposites

Author:
Marwa M. Abdel-Aziz,   et al.   ; Mahmoud H. Abu Elella; Riham R. Mohamed; Magdy W. Sabaa;     Show all 4 Authors
Source:
International journal of biological macromolecules 2018 v.111 pp. 706-716
ISSN:
0141-8130
Subject:
anti-infective agents; antimicrobial properties; bacteria; cell viability; chitosan; chlorides; colorectal neoplasms; cytotoxicity; electrolytes; electrostatic interactions; fungi; nanocomposites; pollution; polyacrylic acid; silver
Abstract:
... The present study is imported to solve two critical problems we face in our daily life which are microbial pollution and colon cancer. One pot green synthesis of a water soluble polyelectrolyte complex (PEC) between cationic polysaccharide as N,N,N-trimethyl chitosan chloride (TMC) and anionic polymer as poly (acrylic acid) (PAA) in presence of silver nanoparticles to yield (TMC/PAA/Ag) nanocompos ...
DOI:
10.1016/j.ijbiomac.2018.01.055

48. High performance thin-layer and high performance liquid chromatography coupled with photodiode array and fluorescence detectors for analysis of valsartan and sacubitril in their supramolecular complex with quantitation of sacubitril-related substance in raw material and tablets

Author:
Marwa A A Ragab,   et al.   ; Shereen M Galal; Mohamed A Korany; Aya R Ahmed;     Show all 4 Authors
Source:
Journal of chromatographic science 2018 v.56 no.6 pp. 498-509
ISSN:
1945-239X
Subject:
biphenyl; detection limit; detectors; diodes; drugs; fluorescence; heart failure; high performance liquid chromatography; pyrrolidones; raw materials; thin layer chromatography
Abstract:
... Valsartan (VAL) and sacubitril (SAC) are combined in a supramolecular complex, LCZ696, which is a newly approved remedy for heart failure. SAC-related substance (biphenyl methyl pyrrolidinone [BMP]) which also appears as an intermediate during SAC synthesis is considered to be a suspected impurity for SAC and/or LCZ696 tablets. The study investigates the analysis of VAL and SAC in their supramolec ...
DOI:
10.1093/chromsci/bmy021

49. Hydroxyethyl cellulose hydrogel for wound dressing: Fabrication, characterization and in vitro evaluation

Author:
Marwa M. Abu-Serie,   et al.   ; Gomaa F. El Fawal; Mohamed A. Hassan; Mohamed S. Elnouby;     Show all 4 Authors
Source:
International journal of biological macromolecules 2018 v.111 pp. 649-659
ISSN:
0141-8130
Subject:
Fourier transform infrared spectroscopy; Salmonella; X-ray diffraction; agar; antibacterial properties; cellulose; citric acid; crosslinking; enzyme-linked immunosorbent assay; fibroblasts; human cell lines; humans; hydrogels; in vitro studies; leukocytes; mechanical properties; models; porosity; thermogravimetry; tungsten oxide; wound treatment
Abstract:
... In this study, new hydrogel membranes were developed based on hydroxyethyl cellulose (HEC) supplemented with tungsten oxide for further implementing in wound treatment. HEC hydrogel membranes were fabricated and crosslinked using citric acid (CA). Various tests were carried out including FTIR, XRD, porosity measurements, swelling, mechanical properties, gel fraction, and thermal gravimetric analys ...
DOI:
10.1016/j.ijbiomac.2018.01.040

50. Immobilization of horseradish peroxidase into cubic mesoporous silicate, SBA-16 with high activity and enhanced stability

Author:
Marwa N. El-Nahass,   et al.   ; Mai M. El-keiy; Ehab M.M. Ali;     Show all 3 Authors
Source:
International journal of biological macromolecules 2018 v.116 pp. 1304-1309
ISSN:
0141-8130
Subject:
X-ray diffraction; hydrogen peroxide; immobilized enzymes; pH; peroxidase; porosity; porous media; scanning electron microscopy; silicates; surface area; temperature; thermogravimetry; transmission electron microscopy
Abstract:
... Mesoporous silicate, SBA-16 is one of the most promising supports for horseradish peroxidase. In this study, SBA-16 was synthesized, and the anchored HRP enzyme in the organized porous networks, SBA-16. The mesoporous material, SBA-16 and the anchored HRP enzyme were characterized by Fourier transform infrared, scanning electron microscopy, transmission electron microscopy, N₂ adsorption-desorptio ...
DOI:
10.1016/j.ijbiomac.2018.05.025

51. Impact of a Pilot School-Based Nutrition Intervention on Dietary Knowledge, Attitudes, Behavior and Nutritional Status of Syrian Refugee Children in the Bekaa, Lebanon

Author:
Marwa Diab El Harake,   et al.   ; Samer Kharroubi; Shadi K. Hamadeh; Lamis Jomaa;     Show all 4 Authors
Source:
Nutrients 2018 v.10 no.7 pp. -
ISSN:
2072-6643
Subject:
attitudes and opinions; dietary fiber; elementary schools; energy; food intake; long term effects; nutrition knowledge; nutritional intervention; nutritional status; saturated fats; school children; snacks; sociodemographic characteristics; Lebanon
Abstract:
... This study evaluated the impact of a 6-month school nutrition intervention on changes in dietary knowledge, attitude, behavior (KAB) and nutritional status of Syrian refugee children. A quasi-experimental design was followed; Syrian refuge children in grades 4 to 6 were recruited from three informal primary schools (two intervention and one control) located in the rural Bekaa region of Lebanon. Th ...
DOI:
10.3390/nu10070913
PubMed:
30018221
PubMed Central:
PMC6073287

52. Impact of priming on global soil carbon stocks

Author:
Marwa Tifafi,   et al.   ; Bertrand Guenet; Marta Camino‐Serrano; Philippe Ciais; Fabienne Maignan; Jennifer L. Soong; Ivan A. Janssens;     Show all 7 Authors
Source:
Global change biology 2018 v.24 no.5 pp. 1873-1883
ISSN:
1354-1013
Subject:
carbon; carbon dioxide; carbon sequestration; carbon sinks; climate change; equations; models; soil; soil organic matter
Abstract:
... Fresh carbon input (above and belowground) contributes to soil carbon sequestration, but also accelerates decomposition of soil organic matter through biological priming mechanisms. Currently, poor understanding precludes the incorporation of these priming mechanisms into the global carbon models used for future projections. Here, we show that priming can be incorporated based on a simple equation ...
DOI:
10.1111/gcb.14069

53. Impacts of the traditional baited basket fishing trap “gargoor” on green sea turtles Chelonia mydas (Testudines: Cheloniidae) Linnaeus, 1758 from two case reports in the United Arab Emirates

Author:
Marwa Al Bousi,   et al.   ; Fadi Yaghmour; Brendan Whittington-Jones; John Pereira; Soledad García-Nuñez; Jane Budd;     Show all 6 Authors
Source:
Marine pollution bulletin 2018 v.135 pp. 521-524
ISSN:
0025-326X
Subject:
Chelonia mydas; bycatch; case studies; coasts; fauna; fish communities; fishermen; gastrointestinal system; harvesting; ingestion; nontarget organisms; sea turtles; steel; traps; water pollution; United Arab Emirates
Abstract:
... The United Arab Emirates fisheries consist of highly diverse fish communities, and the most popular equipment used by fishermen to harvest them is a traditional baited basket fishing trap known locally as “gargoor”. Gargoors are dome-shaped traps made from galvanized steel; they have a circular supporting base and a funnel-like entrance. Unintended impacts of gargoors on marine fauna include bycat ...
DOI:
10.1016/j.marpolbul.2018.07.059

54. Improvement of the quality and the shelf life of reduced-nitrites turkey meat sausages incorporated with carotenoproteins from blue crabs shells

Author:
Marwa Hamdi,   et al.   ; Rim Nasri; Nawel Dridi; Hafedh Moussa; Lotfi Ashour; Moncef Nasri;     Show all 6 Authors
Source:
Food control 2018 v.91 pp. 148-159
ISSN:
0956-7135
Subject:
2,2-diphenyl-1-picrylhydrazyl; antimicrobial properties; antioxidant activity; color; crab shells; crabs; dose response; free fatty acids; free radical scavengers; functional foods; heme iron; lipid peroxidation; mesophilic microorganisms; myoglobin; nitrites; oxidation; sausages; shelf life; thiobarbituric acid; thiobarbituric acid-reactive substances; turkey meat
Abstract:
... The present study investigated the biological properties of carotenoproteins extract (CPE) from blue crab shells as well as the influence of its addition on the quality of turkey meat sausages (TMSs) containing reduced amounts of nitrites. CPE exhibited antioxidant activity in a dose-dependent manner evaluated through different in vitro antioxidant assays, and interesting antimicrobial potential. ...
DOI:
10.1016/j.foodcont.2018.03.048

55. In vitro evaluation of the synergistic antioxidant and anti-inflammatory activities of the combined extracts from Malaysian Ganoderma lucidum and Egyptian Chlorella vulgaris

Author:
Marwa M. Abu-Serie,   et al.   ; Noha H. Habashy; Wafaa E. Attia;     Show all 3 Authors
Source:
BMC complementary and alternative medicine 2018 v.18 no.1 pp. 154
ISSN:
1472-6882
Subject:
Chlorella vulgaris; Ganoderma lucidum; alternative medicine; anti-inflammatory activity; antioxidants; glutathione; human diseases; in vitro studies; inducible nitric oxide synthase; inflammation; leukocytes; lipid peroxidation; microalgae; models; mushrooms; nitric oxide; oxidative stress; pathogenesis; phytopharmaceuticals; prostaglandin synthase; transcription factor NF-kappa B; tumor necrosis factor-alpha
Abstract:
... BACKGROUND: Since oxidative stress and inflammation are two linked factors in the pathogenesis of several human diseases. Thus identification of effective treatment is of great importance. Edible mushroom and microalgae are rich in the effective antioxidant phytochemicals. Hence, their beneficial effects on oxidative stress-associated inflammation are extremely required to be investigated. METHODS ...
DOI:
10.1186/s12906-018-2218-5
PubMed:
29747629
PubMed Central:
PMC5946467

56. In vitro fermentation of Cookeina speciosa glucans stimulates the growth of the butyrogenic Clostridium cluster XIVa in a targeted way

Author:
Marwa El-Hindawy,   et al.   ; Thaisa Moro Cantu-Jungles; Andrea Caroline Ruthes; Roberta Barbara Moreno; Xiaowei Zhang; Lucimara M.C. Cordeiro; Bruce R. Hamaker; Marcello Iacomini;     Show all 8 Authors
Source:
Carbohydrate polymers 2018 v.183 pp. 219-229
ISSN:
0144-8617
Subject:
Bacteroides uniformis; Clostridium; Cookeina speciosa; Roseburia; bacteria; beta-glucans; chemical structure; dietary fiber; digestive system; fermentation; fructooligosaccharides; humans; intestinal microorganisms; models; polymers
Abstract:
... Dietary fiber chemical and physical structures may be critical to the comprehension of how they may modulate gut bacterial composition. We purified insoluble polymers from Cookeina speciosa, and investigated its fermentation profile in an in vitro human fecal fermentation model. Two glucans, characterized as a (1 → 3),(1 → 6)-linked and a (1→3)-linked β-D-glucans were obtained. Both glucans were h ...
DOI:
10.1016/j.carbpol.2017.12.020

57. Influence of Nickel on Biomass Pyro-Gasification: Coupled Thermodynamic and Experimental Investigations

Author:
Marwa Said,   et al.   ; Laurent Cassayre; Jean-Louis Dirion; Ange Nzihou; Xavier Joulia;     Show all 5 Authors
Source:
Industrial & engineering chemistry process design and development 2018 v.57 no.30 pp. 9788-9797
ISSN:
1520-5045
Subject:
biomass; carbon; carbon dioxide; catalytic activity; chemical composition; gases; gasification; heavy metals; nickel; oxygen; process design; pyrolysis; sulfur; thermodynamics; volatilization; wood
Abstract:
... The present research falls within the scope of the chemical influence of heavy metals on thermochemical conversion of biomass. Specifically, the impact of nickel during pyrolysis and CO₂-gasification of willow samples was studied by experimental and thermodynamic approaches. For this purpose, willow wood samples were impregnated with various contents of nickel. The pyro-gasification tests were per ...
DOI:
10.1021/acs.iecr.7b05201

58. LC–MS/MS bioassay of four proton pump inhibitors

Author:
Marwa A. Fouad,   et al.   ; Ehab F. Elkady; Bushra M. Jaadan;     Show all 3 Authors
Source:
Journal of chromatography 2018 v.1076 pp. 61-69
ISSN:
1570-0232
Subject:
acetonitrile; ammonium; bioassays; chromatography; drugs; formates; guidelines; humans; ionization; lansoprazole; methanol; monitoring; proteins; proton pump inhibitors; regression analysis; temperature
Abstract:
... A new validated bio-analytical LC–MS/MS method was developed for the simultaneous extraction and determination of four proton pump inhibitors: esomeprazole, lansoprazole, pantoprazole and rabeprazole in human plasma using escitalopram as an internal standard. The proteins in plasma samples were precipitated using acetonitrile for the extraction of analytes which is a simple economic method. The se ...
DOI:
10.1016/j.jchromb.2018.01.022

59. Lactulose production by a thermostable glycoside hydrolase from the hyperthermophilic archaeon Caldivirga maquilingensis IC‐167

Author:
Marwa YF Koko,   et al.   ; Rebaone Letsididi; Hinawi AM Hassanin; Tao Zhang; Bo Jiang; Wanmeng Mu;     Show all 6 Authors
Source:
Journal of the science of food and agriculture 2018 v.98 no.3 pp. 928-937
ISSN:
0022-5142
Subject:
enzymes; fructose; galactose; glycosides; lactose; lactulose; pH; risk reduction; solubility; temperature; thermal stability
Abstract:
... BACKGROUND: Lactulose has various uses in the food and pharmaceutical fields. Thermostable enzymes have many advantages for industrial exploitation, including high substrate solubilities as well as reduced risk of process contamination. RESULTS: Enzymatic synthesis of lactulose employing a transgalactosylation reaction by a recombinant thermostable glycoside hydrolase (GH1) from the hyperthermophi ...
DOI:
10.1002/jsfa.8539

60. Marine debris ingestion of green sea turtles, Chelonia mydas, (Linnaeus, 1758) from the eastern coast of the United Arab Emirates

Author:
Marwa Al Bousi,   et al.   ; Fadi Yaghmour; Brendan Whittington-Jones; John Pereira; Soledad García-Nuñez; Jane Budd;     Show all 6 Authors
Source:
Marine pollution bulletin 2018 v.135 pp. 55-61
ISSN:
0025-326X
Subject:
Chelonia mydas; coasts; color; esophagus; ingestion; intestines; plastics; sea turtles; stomach; water pollution; Oman; United Arab Emirates
Abstract:
... The deleterious effects of marine debris ingestion on marine turtles are well documented in literature globally. In this study, the qualitative and quantitative aspects of marine debris ingested by 14 stranded green sea turtles Chelonia mydas, (Linnaeus, 1758) along the eastern coast of the United Arab Emirates were investigated. The numeric and gravimetric proportions of debris in the esophagus, ...
DOI:
10.1016/j.marpolbul.2018.07.013

61. Mechanical ventilator as a major cause of infection and drug resistance in intensive care unit

Author:
Marwa M. E. Abd-Elmonsef,   et al.   ; Dalia Elsharawy; Ayman S. Abd-Elsalam;     Show all 3 Authors
Source:
Environmental science and pollution research international 2018 v.25 no.31 pp. 30787-30792
ISSN:
0944-1344
Subject:
Acinetobacter baumannii; Pseudomonas aeruginosa; Staphylococcus aureus; Staphylococcus epidermidis; amikacin; antibiotic resistance; bacteria; bacterial growth; drugs; etiology; hospitals; imipenem; levofloxacin; linezolid; morbidity; mortality; multiple drug resistance; patients; pneumonia; risk factors; vancomycin; United States
Abstract:
... Ventilator-associated pneumonia (VAP) is the most frequent infection in intensive care units (ICU). It is associated with high rates of long morbidity and mortality. Management of a case of VAP is often said to add $40,000 to hospital costs USA. All these data directed our interest to study the etiology, risk factors, and antibiotic susceptibility patterns of VAP in ICU of Tanta University Hospita ...
DOI:
10.1007/s11356-017-8613-5

62. Mechanism mediating the protective effect of diacerein in ischemia-reperfusion-induced testicular injury in rats

Author:
Marwa M.M. Refaie,   et al.   ; Seham A. Abdel-Gaber; Rehab K. Mohammed;     Show all 3 Authors
Source:
Life sciences 2018 v.209 pp. 57-62
ISSN:
0024-3205
Subject:
antioxidant activity; blood serum; cholesterol; glutathione; histopathology; malondialdehyde; mechanism of action; necrosis; nitrites; nitrogen oxides; oxidative stress; protective effect; rats; spermatic cord; superoxide dismutase; testes; testosterone
Abstract:
... Torsion of the spermatic cord is a common urologic emergency and can lead to testicular necrosis and infertility. Diacerein (DIA) is interleukin-1b (IL-1b) blocker which has a protective role against myocardial ischemia-reperfusion, however, to-date this role has not been investigated in testicular ischemia- reperfusion (TIR). We aimed to investigate the role and mechanism of action of DIA in indu ...
DOI:
10.1016/j.lfs.2018.07.060

63. Molecular cloning and characterization of the novel CYP2J2 in dromedary camels (Camelus dromedarius)

Author:
Marwa A. Ibrahim,   et al.   ; Shaimaa Kamel; ElSaid T. Awad; Hatim M.A. El-Hindi; Samy A. Abdel-Aziz;     Show all 5 Authors
Source:
International journal of biological macromolecules 2018 v.120 pp. 1770-1776
ISSN:
0141-8130
Subject:
Camelus dromedarius; amino acids; bioinformatics; endoplasmic reticulum; heart; introns; kidneys; liver; messenger RNA; molecular cloning; nucleotides; open reading frames
Abstract:
... Although its economic, cultural and biological importance, many genes haven't been depicted, sequenced or analyzed to date for Camelus dromedarius. In the present paper, the full-length c-DNA of a novel CYP2J2 (GenBank accession number MH511989) was cloned from liver, heart, and kidney mRNA by RACE-PCR. The full-length c-DNA of the cloned CYP2J2 was sequenced and analyzed using bioinformatics meth ...
DOI:
10.1016/j.ijbiomac.2018.09.193

64. Natural radionuclides distribution and environmental impacts of ferruginous sand-siltstone (raw material) and their manufactured Ahmer oxide used as wall paints

Author:
Marwa M. Abdel Azeem,   et al.   ; Abd El Hadi A. Abbas; Mahmoud R. Khattab;     Show all 3 Authors
Source:
Environmental forensics 2018 v.19 no.3 pp. 217-224
ISSN:
1527-5930
Subject:
absorbed dose; adsorption; environmental impact; gamma radiation; hematite; iron oxyhydroxides; manufacturing; paints; potassium; radiometry; radionuclides; radium; raw materials; spectrometers; thorium; uranium; zircon
Abstract:
... Commercially known Ahmer oxide paints are prepared from raw material mainly composed of red iron oxides (hematite) and iron oxyhydroxides. The raw material used in manufacturing of Ahmer oxide comes from some localities in southwest Sinai such as Abu Thor, Allouga, and El lehian. The adsorption of uranium and other radioelements on iron oxides could make the raw material (red iron oxides) and thei ...
DOI:
10.1080/15275922.2018.1485791

65. Nephroprotective effect of saxagliptin against gentamicin-induced nephrotoxicity, emphasis on anti-oxidant, anti-inflammatory and anti-apoptic effects

Author:
Marwa Mohamed Abdel Fattah Zaki,   et al.   ; Manar Gamal Helal; Eman Said;     Show all 3 Authors
Source:
Life sciences 2018 v.208 pp. 64-71
ISSN:
0024-3205
Subject:
adhesion; adverse effects; albuminuria; antioxidant activity; antioxidants; blood serum; caspase-3; catalase; creatinine; enzyme activity; gentamicin; hemostasis; kidney neoplasms; kidneys; necrosis; nephroprotective effect; nephrotoxicity; nitric oxide; oxidants; rats; tumor necrosis factor-alpha; vascular cell adhesion molecules
Abstract:
... Nephrotoxicity is a serious adverse effect frequently encountered with aminoglycosides administration. Given the value of aminoglycosides in management of serious infections, nephro-protection is highly recommended. The current study investigated the nephro-protective effect of saxagliptin (SAXA) (12.5 mg/kg, I.P.) against gentamicin (GEN)-induced nephrotoxicity in rats. SAXA administration for 14 ...
DOI:
10.1016/j.lfs.2018.07.021

66. On biodiesels from castor raw oil using catalytic pyrolysis

Author:
Marwa Ahmed Abdelazeem,   et al.   ; Mohammed Saleh Hamed Abdelfattah; Osayed Sayed Mohamed Abu-Elyazeed; Ebtsam Abd El mawla;     Show all 4 Authors
Source:
Energy 2018 v.143 pp. 950-960
ISSN:
0360-5442
Subject:
aluminum oxide; biodiesel; castor oil; catalysts; chemical composition; fuel oils; gas chromatography-mass spectrometry; moieties; potassium hydroxide; pyrolysis; sodium carbonate; sodium hydroxide; temperature; zeolites
Abstract:
... In the present work, different types of castor biodiesels were synthesized by using slow pyrolysis process of raw castor oil in the presence of different types of catalysts. These catalysts as anhydrous sodium hydroxide (NaOH), alumina (Al₂O₃), sodium carbonate (Na₂CO₃), potassium hydroxide (KOH) and molecular sieve catalyst zeolite (ZMS-5) combined with anhydrous sodium hydroxide (ZMS-5 combined ...
DOI:
10.1016/j.energy.2017.09.095

67. Optimization of bio-insecticide production by Tunisian Bacillus thuringiensis israelensis and its application in the field

Author:
Marwa Kharrat,   et al.   ; Raida Zribi Zghal; Ahmed Rebai; Saoussen Ben Khedher; Wafa Jallouli; Jihen Elleuch; Carole Ginibre; Fabrice Chandre; Slim Tounsi;     Show all 9 Authors
Source:
Biological control 2018 v.124 pp. 46-52
ISSN:
1049-9644
Subject:
Aedes aegypti; Bacillus thuringiensis subsp. israelensis; Culex pipiens; agroindustrial byproducts; biological control; biopesticides; delta-endotoxins; dipotassium hydrogen phosphate; experimental design; fermented foods; imagos; larvae; larvicides; pH; soybean meal; vector-borne diseases; water quality; Tunisia
Abstract:
... Bacillus thuringiensis israelensis biological larvicides represent a good approach to support vector borne diseases control programs targeting earlier aquatic larval stages to limit their adult mosquito spreading.BUPM98, a Tunisian B. thuringiensis israelensis strain, is highly active against Aedes aegypti larvae. For the production of BUPM98 bioinsecticide, an agricultural by-product medium consi ...
DOI:
10.1016/j.biocontrol.2018.06.002

68. Optimization of enzymatic extraction of pectin from Opuntia ficus indica cladodes after mucilage removal

Author:
Marwa Friji,   et al.   ; Nadia Bayar; Radhouane Kammoun;     Show all 3 Authors
Source:
Food chemistry 2018 v.241 pp. 127-134
ISSN:
0308-8146
Subject:
2,2-diphenyl-1-picrylhydrazyl; Opuntia ficus-indica; antioxidant activity; cladodes; emulsions; endo-1,4-beta-glucanase; foams; food industry; liquids; mucilages; oils; pectins; uronic acids; xylanases
Abstract:
... In this study, pectin was isolated from Opuntia ficus indica (OFI) cladodes after removing mucilage using the xylanase and cellulase. The process variables were optimized by the Box Behnken design with three factors at three levels. The optimal extraction condition obtained was: liquid to solid (LS), cellulase to xylanase and enzymes to matter ratios of 22ml/g, 2:1U/U and 4U/g, respectively. The s ...
DOI:
10.1016/j.foodchem.2017.08.051

69. Phenolic profiling and antioxidant capacity in flowers, leaves and peels of Tunisian cultivars of Punica granatum L.

Author:
Marwa Bannour,   et al.   ; Boutheina Fellah; Gabriele Rocchetti; Luigi Lucini; Ali Ferchichi;     Show all 5 Authors
Source:
Journal of food science and technology 2018 v.55 no.9 pp. 3606-3615
ISSN:
0022-1155
Subject:
Punica granatum; antioxidant activity; bioactive compounds; cultivars; flowers; gallic acid; health promotion; high performance liquid chromatography; leaves; mass spectrometry; methanol; multivariate analysis; pomegranates; rutin; ultra-performance liquid chromatography
Abstract:
... The comprehensive phenolic fingerprints of flowers, peels and leaves of two Tunisian Punica granatum L. cultivars, namely Nabli and Gabsi, were investigated. The highest phenolic content was recorded in the Nabli flowers, followed by Gabsi peels extracts (152.6 and 125.8 mg gallic acid equivalent 100 g⁻¹, respectively) while flavonoids and flavonols were highest in Gabsi peels (19.2 and 26.0 mg Ru ...
DOI:
10.1007/s13197-018-3286-8
PubMed:
30150819
PubMed Central:
PMC6098781

70. Physicochemical, textural, rheological and microstructural properties of protein isolate gels produced from European eel (Anguilla anguilla) by heat-induced gelation process

Author:
Marwa Hamdi,   et al.   ; Wafa Taktak; Rim Nasri; Laura G. Gomez-Mascaraque; Amparo Lopez-Rubio; Suming Li; Moncef Nasri; Maha Karra-Chaâbouni;     Show all 8 Authors
Source:
Food hydrocolloids 2018 v.82 pp. 278-287
ISSN:
0268-005X
Subject:
Anguilla anguilla; Fourier transform infrared spectroscopy; gelation; gelling properties; gels; heat treatment; hydrocolloids; ionic strength; muscles; pH; protein isolates; texture; water holding capacity
Abstract:
... This study investigates the preparation and characterization of a protein isolate extracted from European eel (Anguilla anguilla) and its ability to generate protein gel. European eel protein isolate (EPI) was extracted from European eel muscle by a pH-shifting process. European eel protein isolate gels (EPIGs) were prepared by heat treatment of EPI with varying gelling parameters. The influences ...
DOI:
10.1016/j.foodhyd.2018.04.008

71. Physiological and molecular genetic studies on two elicitors for improving the tolerance of six Egyptian soybean cultivars to cotton leaf worm

Author:
Marwa M. Ghonaim,   et al.   ; Naglaa A. Ashry; Heba I. Mohamed; Asmaa M. Mogazy;     Show all 4 Authors
Source:
Plant physiology and biochemistry 2018 v.130 pp. 224-234
ISSN:
0981-9428
Subject:
Spodoptera littoralis; cultivars; elicitors; fatty acid composition; genetic markers; genetic variation; genotype; linoleic acid; methyl jasmonate; nitroprusside; palmitic acid; pests; seed yield; soybeans; Egypt
Abstract:
... Cotton leaf worm (Spodoptera littoralis) is considered one of the most destructive agricultural pests in Egypt. Six soybean cultivars (Giza-21, Giza-22, Giza-35, Giza-82, Giza-83 and Giza-111) were grown under natural infection with cotton leaf worm. The effect of two elicitors, methyl jasmonate and sodium nitroprusside on enhancing the ability of susceptible cultivars to tolerate (Spodoptera litt ...
DOI:
10.1016/j.plaphy.2018.07.010

72. Potential use of kraft and organosolv lignins as a natural additive for healthcare products

Author:
Marwa Yahyaoui,   et al.   ; Oihana Gordobil; René Herrera; Sedef İlk; Murat Kaya; Jalel Labidi;     Show all 6 Authors
Source:
RSC advances 2018 v.8 no.43 pp. 24525-24533
ISSN:
2046-2069
Subject:
anti-infective agents; antioxidant activity; antioxidants; biomass; biopolymers; butylated hydroxytoluene; health services; humans; industry; lignin; markets; microorganisms; natural additives; prices; sunscreens; synthetic products
Abstract:
... The growing interest in substituting synthetic products coming from non-renewable sources with products from biomass has focused attention on the lignin biopolymer. Its high availability, low price and properties make the development of new and valuable uses for lignin interesting, thus improving the economic and environmental aspects of the biomass conversion. To achieve this objective, the poten ...
DOI:
10.1039/c8ra02255k

73. Processed gellan gum beads as covalent immobilization carriers

Author:
Marwa I. Wahba
Source:
Biocatalysis and agricultural biotechnology 2018 v.14 pp. 270-278
ISSN:
1878-8181
Subject:
beta-galactosidase; chitosan; gellan gum; pH; polyamines; polyethyleneimine; temperature profiles
Abstract:
... With the aim of employing gellan gum (GG) beads as covalent immobilization carriers, these beads were subjected to two different activation processes. These activation processes differed from one another with respect to the employed polyamine compound as either polyethyleneimine (PEI) or chitosan (CS) was employed. The polyamine treatment step was optimized with the central composite design, and i ...
DOI:
10.1016/j.bcab.2018.03.019

74. Production and characterisation of exopolysaccharide from Streptomyces carpaticus isolated from marine sediments in Egypt and its effect on breast and colon cell lines

Author:
Marwa M. Mounier,   et al.   ; Manal S. Selim; Shaimaa K. Amer; Sahar S. Mohamed; Hala M. Rifaat;     Show all 5 Authors
Source:
Journal of Genetic Engineering and Biotechnology (Print) 2018 v.16 no.1 pp. 23-28
ISSN:
1687-157X
Subject:
Streptomyces; antineoplastic activity; biotechnology; breasts; cell lines; chemical analysis; coasts; colon; cytotoxicity; exopolysaccharides; fructose; galactose; genetic engineering; glucose; humans; mannose; marine sediments; molecular weight; neoplasm cells; sulfates; uronic acids; xylose; Egypt; Red Sea
Abstract:
... Twenty streptomycete strains were isolated from marine sediment samples collected from Nabq area, Sharm El-Sheikh, Red Sea Coast, Egypt. Four of them produce exopolysaccharides (EPS) showing marked in vitro antitumor activities. Morphological and cultural characteristics of the most significant strain (No. 3) were shown. Moreover, the sequence of this strain showed similarity with Streptomyces car ...
DOI:
10.1016/j.jgeb.2017.10.014
PubMed:
30647700
PubMed Central:
PMC6296585

75. Purification and biochemical characterization of peroxidase isoenzymes from Ficus carica latex

Author:
Marwa G.A. Hegazy,   et al.   ; Alshaimaa M. Elsayed; Usama M. Hegazy; Somia S. Abdel-Ghany; Walaa H. Salama; Ahmed M.H. Salem; Afaf S. Fahmy;     Show all 7 Authors
Source:
Biocatalysis and agricultural biotechnology 2018 v.16 pp. 1-9
ISSN:
1878-8181
Subject:
Ficus carica; calcium; industrial applications; isozymes; latex; molecular weight; pH; peroxidase; temperature; thermal stability
Abstract:
... Three peroxidase isoenzymes were isolated from Ficus carica latex using CM-Sepharose, DEAE-Sepharose and Sephacryl S-200. The complete purification was carried out for FP1 only due to the low level of activity and protein concentration of FP2 and FP3. The purified isoenzyme FP1 was found to be monomeric with a molecular weight of 30 kDa. FP1 and FP3 isoenzymes had the same pH and temperature optim ...
DOI:
10.1016/j.bcab.2018.07.009

76. QSRR modeling for the chromatographic retention behavior of some β-lactam antibiotics using forward and firefly variable selection algorithms coupled with multiple linear regression

Author:
Marwa A. Fouad,   et al.   ; Enas H. Tolba; Manal A. El-Shal; Ahmed M. El Kerdawy;     Show all 4 Authors
Source:
Journal of chromatography 2018 v.1549 pp. 51-62
ISSN:
0021-9673
Subject:
Lampyridae; acetonitrile; algorithms; beta-lactam antibiotics; beta-lactams; buffers; chromatography; experimental design; models; pH; phosphates; regression analysis
Abstract:
... The justified continuous emerging of new β-lactam antibiotics provokes the need for developing suitable analytical methods that accelerate and facilitate their analysis. A face central composite experimental design was adopted using different levels of phosphate buffer pH, acetonitrile percentage at zero time and after 15 min in a gradient program to obtain the optimum chromatographic conditions f ...
DOI:
10.1016/j.chroma.2018.03.042

77. Renoprotective effects of umbelliferone on methotrexate-induced renal injury through regulation of Nrf-2/Keap-1, P38MAPK/NF-κB, and apoptosis signaling pathways

Author:
Marwa M. Khalaf,   et al.   ; Emad H.M. Hassanein; Wafaa R. Mohamed; Abdel-Gawad S. Shalkami; Ramadan A.M. Hemeida;     Show all 5 Authors
Source:
Food and chemical toxicology 2018 v.116 pp. 152-160
ISSN:
0278-6915
Subject:
adults; adverse effects; albino; apoptosis; blood serum; caspase-3; coumarin; creatinine; cytotoxicity; histopathology; human cell lines; humans; inflammation; males; methotrexate; neoplasm cells; nephrotoxicity; nitrites; oxidative stress; protective effect; protein synthesis; rats; signal transduction; superoxide dismutase; toxicology; transcription factor NF-kappa B; umbelliferones; urea
Abstract:
... Nephrotoxicity is the major dose-limiting adverse effect of methotrexate (MTX). Umbelliferone (UMB) is a known coumarin derivative. The current study aimed to investigate possible protective effects of UMB against MTX-induced nephrotoxicity. Adult male albino rats were divided into: control group, UMB group (30 mg/kg, p.o), MTX group (single i.p. injection of 20 mg/kg) and MTX + UMB group. Serum u ...
DOI:
10.1016/j.fct.2018.03.041

78. Response of Aspergillus flavus, Aspergillus niger and Penicillium citrinum to oxidative stress induced by Fenton’s reagent

Author:
Marwa T.A. Abdel-Wareth,   et al.   ; Rafat T. Abdel-Wahed;     Show all 2 Author
Source:
International journal of environmental studies 2018 v.75 no.4 pp. 605-622
ISSN:
1029-0400
Subject:
Aspergillus flavus; Aspergillus niger; Penicillium citrinum; catalase; catalysts; fungi; human health; hydrogen peroxide; iron; mycelium; oxidative stress; oxygen; spores; superoxide dismutase
Abstract:
... The presence of fungi in water systems represents a threat to human health. Hydrogen peroxide is known for its disinfecting properties and easy decomposition to water and oxygen. Its activity can be enhanced by the addition of iron as a catalyst, a reagent known as Fentonʼs reagent. In the present study, different Fenton concentrations were investigated on the spores of Aspergillus flavus, Aspergi ...
DOI:
10.1080/00207233.2017.1403810

79. Role of adipose tissue derived stem cells differentiated into insulin producing cells in the treatment of type I diabetes mellitus

Author:
Marwa G. Amer,   et al.   ; Mona G. Amer; Azza S. Embaby; Rehab A. Karam;     Show all 4 Authors
Source:
Gene 2018 v.654 pp. 87-94
ISSN:
0378-1119
Subject:
adipose tissue; animal disease models; c-peptide; cell differentiation; diabetes; flow cytometry; gene expression; genes; glucose; immune response; immunohistochemistry; insulin secretion; islets of Langerhans; messenger RNA; morphometry; patients; phenotype; quantitative polymerase chain reaction; rats; stem cells; streptozotocin; therapeutics; transcription factors
Abstract:
... Generation of new β cells is an important approach in the treatment of type 1 diabetes mellitus (type 1 DM). Adipose tissue-derived stem cells (ADSCs) might be one of the best sources for cell replacement therapy for diabetes. Therefore, this work aimed to test the possible role of transplanted insulin-producing cells (IPCs) differentiated from ADSCs in treatment of streptozotocin (STZ) induced ty ...
DOI:
10.1016/j.gene.2018.02.008

80. Singlet Fission in Perylenediimide Dimers

Author:
Marwa H. Farag,   et al.   ; Anna I. Krylov;     Show all 2 Author
Source:
Journal of physical chemistry 2018 v.122 no.45 pp. 25753-25763
ISSN:
1932-7455
Subject:
absorption; geometry; kinetics; models; spectroscopy; trapping
Abstract:
... Singlet fission is a process in which one singlet exciton is converted to two triplets. By using transient absorption and time-resolved emission spectroscopy, recent experimental study (J. Am. Chem. Soc. 2017, 140, 814) investigated how different crystal packing of perylenediimide (PDI) molecules modulates their singlet fission rates and yields. It was observed that the rates vary between 0.33 and ...
DOI:
10.1021/acs.jpcc.8b05309

81. Stability, bio-functionality and bio-activity of crude phycocyanin from a two-phase cultured Saharian Arthrospira sp. strain

Author:
Marwa Hamdi,   et al.   ; Imene Chentir; Suming Li; Amel Doumandji; Giorgos Markou; Moncef Nasri;     Show all 6 Authors
Source:
Algal research 2018 v.35 pp. 395-406
ISSN:
2211-9264
Subject:
2,2-diphenyl-1-picrylhydrazyl; Arthrospira; Escherichia coli; Fourier transform infrared spectroscopy; Micrococcus luteus; Pseudomonas; Staphylococcus aureus; algae; antibacterial properties; antioxidant activity; beta-carotene; bleaching; dose response; emulsifying; foaming properties; glass; hydrogen; pH; phycocyanin; solubility; sorbitol; stabilizers; thermal stability
Abstract:
... Crude phycocyanin extract (PC-E) from a two-phase cultured Saharian Arthrospira sp. strain with a purity grade of 1.24 (reagent grade) was characterized regarding its stability, bio-functionality and bio-activity. PC-E showed higher solubility values above pH 6.0, while the maximum stability was achieved at pH 6.0. PC-E was stable only up to 50 °C, while the addition of stabilizing agents (PEG-400 ...
DOI:
10.1016/j.algal.2018.09.013

82. Sterol profiles of Tunisian virgin olive oils: classification among different cultivars and maturity indexes

Author:
Marwa Abdallah,   et al.   ; María Vergara-Barberán; María Jesús Lerma-García; José Manuel Herrero-Martínez; Mokhtar Zarrouk; Mokhtar Guerfel; Ernesto Francisco Simó-Alfonso;     Show all 7 Authors
Source:
European food research & technology 2018 v.244 no.4 pp. 675-684
ISSN:
1438-2377
Subject:
cultivars; discriminant analysis; food research; high performance liquid chromatography; mass spectrometry; models; sterols; virgin olive oil
Abstract:
... The suitability of sterol profiles established by HPLC–MS as a tool to discriminate between seven cultivars of Tunisian virgin olive oils (VOOs) was evaluated in this study. Moreover, some cultivars (Chemchali, Fouji and Zarrazi) have been also classified according to their maturity index. A total of nine sterol peaks, which appeared in all samples, were used to develop linear discriminant analysi ...
DOI:
10.1007/s00217-017-2990-3

83. Stop eating plastic, molecular signaling of bisphenol A in breast cancer

Author:
Marwa Matbouly,   et al.   ; Ayman Shafei; Ezzat Mostafa; Salah Al Sannat; Mahmoud Abdelrahman; Bola Lewis; Badr Muhammad; Shaima Mohamed; Randa Mohamed Mostafa;     Show all 9 Authors
Source:
Environmental science and pollution research 2018 v.25 no.24 pp. 23624-23630
ISSN:
0944-1344
Subject:
G-protein coupled receptors; animals; binding capacity; bisphenol A; bone morphogenetic proteins; breast neoplasms; cytokines; epigenetics; estrogen receptors; homeotic genes; immunomodulation; in vitro studies; ingestion; mammary glands; manufacturing; neoplasm cells; risk factors; women
Abstract:
... Breast cancer is the second most common fatal cancer in women. Developing a breast cancer is a multi-factorial and hormonal-dependent process, which may be triggered by many risk factors. An endocrine disrupting substance known as bisphenol A (BPA), that is used greatly in the manufacture of plastic products, was suggested as a possible risk factor for developing breast cancer. BPA has a strong bi ...
DOI:
10.1007/s11356-018-2540-y

84. Subcategory assessment method for social life cycle assessment: a case study of high-density polyethylene production in Alberta, Canada

Author:
Marwa Hannouf,   et al.   ; Getachew Assefa;     Show all 2 Author
Source:
international journal of life cycle assessment 2018 v.23 no.1 pp. 116-132
ISSN:
0948-3349
Subject:
business enterprises; case studies; cradle-to-gate; data collection; databases; developmental stages; issues and policy; life cycle inventory; peers; polyethylene; social impact; stakeholders; Alberta
Abstract:
... PURPOSE: The aim of this study is to develop and test the applicability of a new subcategory assessment method (SAM) for social life cycle assessment using a case study on high-density polyethylene (HDPE) production by Dow Chemical Canada facility in Alberta, Canada. METHODS: The methodology is characterized by six steps: (1) definition of the goal and scope of the assessment; (2) life cycle inven ...
DOI:
10.1007/s11367-017-1303-1

85. Supplementary outcomes of betaine on economic and productive performance, some biochemical parameters, and lipoprotein lipase gene expression in finishing male broilers

Author:
Marwa A. Hassan,   et al.   ; Mohamed S. Yusuf; Adel A. El Nabtiti; Mostafa A. Mandour;     Show all 4 Authors
Source:
International journal of veterinary science and medicine 2018 v.6 no.2 pp. 213-218
ISSN:
2314-4599
Subject:
DNA methylation; abdominal fat; albumins; animal proteins; battery cages; betaine; bisulfites; blood; blood chemistry; carcass yield; diet; epigenetics; finishing; gene expression; genes; lipoprotein lipase; males; messenger RNA; prices; production costs; quantitative polymerase chain reaction; sequence analysis; triacylglycerols; uric acid; Egypt
Abstract:
... Egypt’s population is growing with the biggest hurdle facing the Government is to secure animal protein. Broilers provide quality protein of reasonable price. This study was conducted to investigate the outcomes of dietary organic betaine (betafin S4) on productive, epigenetic make up of lipoprotein lipase gene (LPL) promoter, some blood biochemical, and economic parameters in male broilers at fin ...
DOI:
10.1016/j.ijvsm.2018.11.004
PubMed:
30564598
PubMed Central:
PMC6286624

86. The ameliorating effect of the combined extract from Greek Thymus vulgaris and bee's honey on the hydrocortisone-induced osteoporosis in rat bone cells via modulating the bone turnover, oxidative stress, and inflammation

Author:
Marwa M. Abu-Serie,   et al.   ; Noha H. Habashy;     Show all 2 Author
Source:
RSC advances 2018 v.8 no.50 pp. 28341-28355
ISSN:
2046-2069
Subject:
Thymus vulgaris; acid phosphatase; anthocyanins; bees; bone health; bone metabolism; chronic diseases; collagen; cortisol; drugs; enzyme activity; flavonols; functional foods; honey; hydroxyapatite; hydroxyproline; inflammation; osteocalcin; osteoporosis; oxidative stress; phenolic compounds; phosphorus; rats; risk; therapeutics; vitamins
Abstract:
... Many of the functional foods are designed to decrease the risk of chronic diseases like osteoporosis (OP) which is the most common bone disorder affecting millions of people. For the first time, the present study evaluated the effect of the combination between the Greek Thymus vulgaris water extract (TVE) and bee's honey (BH) against hydrocortisone (HC)-induced OP in vitro. The characterization of ...
DOI:
10.1039/c8ra04370a

87. The effect of membrane softeners on rigidity of lipid vesicle bilayers: Derivation from vesicle size changes

Author:
Marwa M. Ibrahim,   et al.   ; Mustafa M.A. Elsayed; Gregor Cevc;     Show all 3 Authors
Source:
Chemistry and physics of lipids 2018 v.210 pp. 98-108
ISSN:
0009-3084
Subject:
analytical methods; deoxycholic acid; micelles; phosphatidylcholines; polysorbates; soybeans; thermal stability; vaccines
Abstract:
... Deformability is not just a fundamentally interesting vesicle characteristic; it is also the key determinant of vesicle ability to cross the skin barrier; i.e. skin penetrability. Development of bilayer vesicles for drug and vaccine delivery across the skin should hence involve optimization of this property, which is controllable by the concentration of bilayer softeners in or near the vesicle bil ...
DOI:
10.1016/j.chemphyslip.2017.10.008

88. The roles of telocytes in lung development and angiogenesis: An immunohistochemical, ultrastructural, scanning electron microscopy and morphometrical study

Author:
Marwa M. Hussein,   et al.   ; Doaa M. Mokhtar;     Show all 2 Author
Source:
Developmental biology 2018 v.443 no.2 pp. 137-152
ISSN:
0012-1606
Subject:
angiogenesis; bronchioles; connexins; endothelium; exosomes; immunohistochemistry; mitochondria; phosphopyruvate hydratase; pneumocytes; rabbits; ribosomes; scanning electron microscopy; statistical analysis; stem cells; vascular endothelial growth factors; vimentin
Abstract:
... Many studies have been carried out to investigate the occurrence and distribution of telocytes (TCs) in many organs. However, their morphological development is still unclear. This study was performed to demonstrate the morphological development of TCs in rabbits' lung from fetal to postnatal life using light-, electron- microscopy, immunohistochemistry, morphometrical and statistical analysis. Du ...
DOI:
10.1016/j.ydbio.2018.09.010

89. Toward the enhancement of sensory profile of sausage “Merguez” with chickpea protein concentrate

Author:
Marwa Bejar,   et al.   ; Abir Mokni Ghribi; Amal Ben Amira; Ines Maklouf Gafsi; Massara Lahiani; Mehdi Triki; Ahmed Zouari; Hamadi Attia; Souhail Besbes;     Show all 9 Authors
Source:
Meat science 2018 v.143 pp. 74-80
ISSN:
0309-1740
Subject:
chickpeas; cooking quality; meat; protein concentrates; protein content; sausages; sensory evaluation; taste; texture
Abstract:
... The influence of different Chickpea Protein Concentrates (CPC) addition at different levels (CPC: 1.5, 2.5 and 5% (w/w)) on physico-chemical, textural and hedonic properties of formulated and cooked sausage “Merguez” were investigated. The obtained results exhibited that CPC addition increased protein content of “Merguez” sausage and improved the process yield. Significant differences were noticed ...
DOI:
10.1016/j.meatsci.2018.04.025

90. Toxoplasma gondii as a possible causative pathogen of type-1 diabetes mellitus: Evidence from case-control and experimental studies

Author:
Marwa Mohammed Dawoud,   et al.   ; Engy Victor Nassief Beshay; Samar A. El-Refai; Mohamed A. Helwa; Amany Fawzy Atia;     Show all 5 Authors
Source:
Experimental parasitology 2018 v.188 pp. 93-101
ISSN:
0014-4894
Subject:
Toxoplasma gondii; apoptosis; blood glucose; case-control studies; caspase-3; immunoglobulin G; immunohistochemistry; insulin; insulin-dependent diabetes mellitus; islets of Langerhans; mice; parasites; pathogens; patients; seroprevalence; toxoplasmosis
Abstract:
... Toxoplasma gondii is the causative parasite of an important worldwide disease. This obligate intracellular parasite can infect and replicate inside any nucleated cells including those of pancreas. Insulin is a hormone secreted by the pancreas and is responsible for controlling blood glucose concentration. Deficiency of insulin production accounts for the occurrence of type-1 diabetes mellitus (T1D ...
DOI:
10.1016/j.exppara.2018.04.007

91. Ultrasonographic Reference Values of Kidney Dimensions and Clinicopathological Findings Associating the Transcutaneous Ultrasound-Guided Renal Biopsy in Donkeys (Equus asinus)

Author:
Marwa F. Ali,   et al.   ; Hussein Awad Hussein; Ahmed Ibrahim;     Show all 3 Authors
Source:
Journal of equine veterinary science 2018 v.68 pp. 1-11
ISSN:
0737-0806
Subject:
Equus asinus; asses; biopsy; blood; cortex; hematuria; histopathology; kidney diseases; kidneys; normal values; pelvis; ultrasonography; urine; veterinarians
Abstract:
... This study aimed to establish normal ultrasonographic reference values of kidney dimensions in donkeys (Equus asinus) and to describe and evaluate the clinicopathological variations associated with ultrasound-guided renal biopsy. The ultrasonographic dimensions of the right and left kidneys were conducted on 16 donkeys, which were then divided into two groups; eight each for biopsy of the right ki ...
DOI:
10.1016/j.jevs.2018.04.001

92. Use of green chemistry methods in the extraction of dietary fibers from cactus rackets (Opuntia ficus indica): Structural and microstructural studies

Author:
Marwa Cheikh Rouhou,   et al.   ; Souhir Abdelmoumen; Sabu Thomas; Hamadi Attia; Dorra Ghorbel;     Show all 5 Authors
Source:
International journal of biological macromolecules 2018 v.116 pp. 901-910
ISSN:
0141-8130
Subject:
Fourier transform infrared spectroscopy; Opuntia ficus-indica; X-ray diffraction; atomic force microscopy; cacti and succulents; cellulose; dietary fiber; ethanol; green chemistry; hemicellulose; lemon juice; lignin; maceration; microstructure; scanning electron microscopy; solvents; steam
Abstract:
... This work aims to compare the development of three green chemistry methods in the extraction of cactus (Opuntia ficus indica) dietary fibers. The influence of extraction conditions (solvent nature: water, lemon juice and ethanol; extraction process: maceration and steam explosion; extraction time: 30 min, 1 h, 3 h, 5 h) on the chemical and structural composition was studied. Fourier Transform Infr ...
DOI:
10.1016/j.ijbiomac.2018.05.090

93. Valorization of natural dye extracted from date palm pits (Phoenix dactylifera) for dyeing of cotton fabric. Part 1: Optimization of extraction process using Taguchi design

Author:
Marwa Souissi,   et al.   ; Ahlem Guesmi; Ali Moussa;     Show all 3 Authors
Source:
Journal of cleaner production 2018 v.202 pp. 1045-1055
ISSN:
0959-6526
Subject:
Phoenix dactylifera; absorbance; acetone; aqueous solutions; artificial colors; clothing; cotton fabric; dyeing; experimental design; mixing; natural dyes; pH; polyphenols; solvents; storage conditions; sweat; temperature; wastes
Abstract:
... Nowadays, clothes dyed with synthetic dyes contain a large variety of harmful products for health and environment. These substances are potentially carcinogenic, especially when they mix with sweat. That is why great efforts were carried out to promote natural dyeing while valuing plants considered as a waste. In this study, aqueous solution extracted from date pits powder is characterized and val ...
DOI:
10.1016/j.jclepro.2018.08.115

94. Valorization of natural dye extracted from date palm pits (Phoenix dactylifera) for dyeing of cotton fabric. Part 2: Optimization of dyeing process and improvement of colorfastness with biological mordants

Author:
Marwa Souissi,   et al.   ; Ahlem Guesmi; Ali Moussa;     Show all 3 Authors
Source:
Journal of cleaner production 2018 v.204 pp. 1143-1153
ISSN:
0959-6526
Subject:
Phoenix dactylifera; absorption; almond shells; chlorophyll; color; copper sulfate; cotton fabric; experimental design; friction; lint cotton; mordants; natural dyes; nuts; pH; sweat; temperature; washing; zinc sulfate
Abstract:
... This paper investigates the feasibility of dyeing cotton fibers with solution extracted from date pits which are abundant vegetal material. The extraction step and its optimization were conducted in the first part of this paper. This second part studies the influence of the main dyeing conditions on the color yield K/S and the CIELab coordinates. The studied parameters are pH of the dye bath, temp ...
DOI:
10.1016/j.jclepro.2018.08.325

95. Variation in essential oil composition and biological activities of Foeniculum vulgare Mill. populations growing widely in Tunisia

Author:
Marwa Khammassi,   et al.   ; Sophia Loupassaki; Helmi Tazarki; Faten Mezni; Awatef Slama; Nizar Tlili; Yosr Zaouali; Hedi Mighri; Bassem Jamoussi; Abdelhamid Khaldi;     Show all 10 Authors
Source:
Journal of food biochemistry 2018 v.42 no.3 pp. e12532
ISSN:
0145-8884
Subject:
Foeniculum vulgare; anti-infective agents; antimicrobial properties; antioxidants; bacteria; breeding programs; chemical composition; essential oils; fennel; food industry; gas chromatography-mass spectrometry; industrial applications; medicinal plants; methyl chavicol; oils; pharmaceutical industry; seeds; Tunisia
Abstract:
... Chemical composition, antioxidant, and antimicrobial activities of essential oils from 16 wild edible Tunisian Foeniculum vulgare populations were evaluated. The essential oil yields of fennel seeds ranged from 1.2 to 5.06%. GC‐MS analysis revealed the presence of 20 compounds. Except one sample, essential oils from different locations were mainly composed of phenylpropanoid and the major compound ...
DOI:
10.1111/jfbc.12532

96. When Predators Avoid Predation by Their Con- and Heterospecific Competitors: Non-consumptive Effects Mediate Foraging Behavior and Prey Handling Time of Predators

Author:
Marwa M Ramadan,   et al.   ; Mohamed H Bayoumy;     Show all 2 Author
Source:
Journal of economic entomology 2018 v.111 no.4 pp. 1577-1586
ISSN:
1938-291X
Subject:
Aphis craccivora; Chrysoperla carnea; Coccinella undecimpunctata; foraging; larvae; predation; predators; risk
Abstract:
... Aphids show highly aggregated distributions, and thus their predators tend to aggregate as well, creating conditions optimal to consumptive and non-consumptive (N-CEs) effects among competing predators, both conspecific and heterospecific. If predatory larvae are themselves potential prey for other predators, they may be also sensitive to N-CEs imposed by their con- or heterospecifics. A partition ...
DOI:
10.1093/jee/toy122

97. Whey protein isolate for the preparation of covalent immobilization beads

Author:
Marwa I. Wahba,   et al.   ; Tarik N. Soliman;     Show all 2 Author
Source:
Biocatalysis and agricultural biotechnology 2018 v.14 pp. 328-337
ISSN:
1878-8181
Subject:
Aspergillus oryzae; beta-galactosidase; carrageenan; experimental design; glutaraldehyde; pH; temperature; whey protein isolate
Abstract:
... Whey protein isolate (WPI) was employed, for the first time, to activate carrageenan (Car) beads for the covalent immobilization of the Aspergillus oryzae β-D-galactosidase (β-gal). These Car beads were subjected to a WPI treatment step followed by a glutaraldehyde (GA) treatment step in order to enable such covalent immobilization. The WPI treatment was optimized via the Box-Behnken Design (BBD). ...
DOI:
10.1016/j.bcab.2018.04.003

98. miRNA-221 and miRNA-222 are promising biomarkers for progression of liver fibrosis in HCV Egyptian patients

Author:
Marwa Hassan,   et al.   ; Amanda Abdel-Al; Eman El-Ahwany; Mona Zoheiry; Amged Ouf; Hoda Abu-Taleb; Ali Abdel Rahim; Mohamed Darwish El-Talkawy; Suher Zada;     Show all 9 Authors
Source:
Virus research 2018 v.253 pp. 135-139
ISSN:
0168-1702
Subject:
Hepatitis C virus; biomarkers; biopsy; chronic hepatitis C; fibrosis; liver; liver cirrhosis; microRNA; monitoring; patients
Abstract:
... Current methodologies used to determine the progression of hepatic fibrosis rely heavily on liver biopsy, a dangerous and invasive procedure, with semi-subjective analysis of the results of the biopsy. Thus, a new approach is immensely needed for monitoring the progression of liver fibrosis in Hepatitis C virus (HCV) patients.The purpose of this study was to find highly specific and sensitive miRN ...
DOI:
10.1016/j.virusres.2018.06.007

99. ω-3 and ω-6 Fatty Acids Modulate Conventional and Atypical Protein Kinase C Activities in a Brain Fatty Acid Binding Protein Dependent Manner in Glioblastoma Multiforme

Author:
Marwa E. Elsherbiny,   et al.   ; Hua Chen; Marwan Emara; Roseline Godbout;     Show all 4 Authors
Source:
Nutrients 2018 v.10 no.4 pp. -
ISSN:
2072-6643
Subject:
RNA; arachidonic acid; brain; brain neoplasms; cell lines; docosahexaenoic acid; fatty acid-binding proteins; glioblastoma; omega-6 fatty acids; prognosis; protein kinase C
Abstract:
... Glioblastoma multiforme (GBM) is a highly infiltrative brain cancer with a dismal prognosis. High levels of brain fatty acid binding protein (B-FABP) are associated with increased migration/infiltration in GBM cells, with a high ratio of arachidonic acid (AA) to docosahexaenoic acid (DHA) driving B-FABP-mediated migration. Since several protein kinase Cs (PKCs) are overexpressed in GBM and linked ...
DOI:
10.3390/nu10040454
PubMed:
29642372
PubMed Central:
PMC5946239